Hank and Barb clearly disapprove of Max trying to become a super-villain. So, why do they allow him to associate with Dr.Colosso, who they know is a notorious villain that Thunderman turned into a rabbit?
They also let him keep doomsday devices, there clearly not the brightest parents.
If Max wants the newest smart phone, and also wants to be a supervillain, why doesn't he just steal one? Or steal the money to buy one? He could always lie about where he got if he doesn't want the parents to find out about the stealing.
Max only wants to be a supervillain, because he doesn't want to play second fiddle to his sister. Up to date the most evil things he's done, are no different from what most siblings do to each other or slightly more extreme versions of what rebellious teenagers do. When it comes to true evil, he's more or less all mouth, no action.