The point is that there is a number for everyone to go against their "high level" morals (i.e stuff that is far removed from actually physically harming humans yourself). Anyone who says they don't have one (and not a buddhism follower) is lying.
As for BMWs, thats the idea - you can buy an M car with that salary and everyone who can't afford an M car is gonna wanna be your friend.
No - not everyone has a moral number, believe it or not. And no, most people don't give a shit about the car you drive, or want to friend you for it. Maybe in your social circles, but as someone in circles of both non-tech people and (literally) the richest bunch in tech - I promise, they don't.
What a truly sad mindset/worldview that you believe that to be true.
As for BMWs, thats the idea - you can buy an M car with that salary and everyone who can't afford an M car is gonna wanna be your friend.