WMG / Vince McMahon

Satan fears Vince, not the other way around.
The Devil knows that if Vince shows up in Hell, his first action will be to buy the place and turn Satan into a Jobber or a road agent or some other insignificant role. You know that old line, "Heaven doesn't want me and Hell's afraid I'll take over?" That's Vince. To him, Hell is just another territory. After all, the song "No Chance In Hell" is directed toward whoever Vince is feuding with at a given time.

There is a kayfabe reason for the Montreal Screwjob.
Outside of kayfabe, the reason for Montreal is pretty clear, which was Vince fearing Bret going to WCW with the WWF Heavyweight belt. But one could spin a kayfabe reason for the screwjob: Simply put, Vince finally snapped! After all, he started to receive more and more abuse in 1997. Not only was he shoved and called out by Bret Hart over the course of the year, but he was also stunned by "Stone Cold" Steve Austin. The rise of D-Generation X further added to the impression that he was losing more and more of his authority. Worse, even his "puppets" (whom he installed in order to exert control over the WWF roster, while staying more or less anonymous in his commentary position) like Gorilla Monsoon or Sgt. Slaughter were losing authority right in front of his face. So Bret Hart leaving for WCW (switching over to your competition may very well count as kayfabe) was the final straw for Vince and in order to reestablish his authority, he decided to screw over Bret in his final match, while at the same time finally appearing as the "true" boss.

Vince will run WWE until the day he dies.
He shows little, if any signs of slowing down apart from making fewer televised appearances and many of his closest friends and family members have said that he has no life outside of wrestling. So for those of you who are eager for Hunter and Steph to take over, it probably won't happen as long as Vince is still alive and able to run the promotion.

The Board and/or the other shareholders will end up filing a legal injunction to stop Vince's present streak of awful decision-making.
Real Life business laws are clear: While the majority shareholder does get the final say most of the time, he can still have his voting power legally overridden by the executives and/or other owners if his actions end up deemed too dangerous for the company. And given the crystal-clear trend of decreasing profits, dropping ratings, and constant negative responses to how he's been running things, he's soon going to be faced with an ultimatum: Either set aside his ego and start doing "what's best for business" for real... or suddenly find himself locked out altogether.

Vince is deliberately using Roman Reigns and John Cena to deflect heat off of each other.
You know the infamous conspiracy theory that Vince overpushed Roman Reigns as the second coming of John Cena on purpose while Cena was injured to make people realize that Cena's a much better Cena than Roman is and end up missing Cena as a result? Let's kick this one out both ways and make it simple and plain. These are both guys who are clearly McMahon family/focus group handpicks to be the face of the company over the types of talent that many vocal fans would prefer at the top, and as a result have caught so much heat over the years that they're just as if not more likely to receive boos than cheers. However, despite being plugged into virtually the same role, they are vastly different performers with their own distinct strengths and weaknesses over the other. Reigns is a much better fluid athlete and convincing hard-hitter than Cena in the ring, and doesn't have the tendency to cut questionable Worked Shoot promos that threaten to undercut the progression of any challenger he comes across. However, the latter is mainly because Reigns can't cut a good promo beyond three minutes at a time to save his life, and Cena can still generate a big-fight feel while being far more savvy at representing in PR than Reigns is. With both chosen ones operating at once as protected faces, many fans will look at one, see the ways in which he's better than the other, and be more open to liking him as a result. When Cena didn't have Reigns to compare to in the past (and when vice versa happens in the future, which Reigns got a glimpse of during Cena's time off in 2015), the heat was downright nuclear.