These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
If someone doesn't understand love and only likes you for your breasts, wait for him — at least he's honest about it.
It doesn't matter if you stabbed your father with a knife, as long as your body parts are fine, then you must be a good person.
Then again, it is made very clear that Maeda is a perverted idiot, so his insights into moral questions should always be taken with a grain of salt.
Genius Bonus: Yukari being an archery champion (archery being a sport that famously requires its female participants to possess flat chests, while Yukari has Gag Boobs) is a joke that would go right over most people's heads.