I don't think there are many sane persons around, who honestly want to deal with company bullshit, if not for the money.
I mean, you can find a million fake answers, "I want the challenge", "I want to improve myself in difficult situations", blabla, - but this is exactly the kind of bullshit I am only willing to put up with, if I need the money. So why can he just be honest and say so?
I mean, it is a valid concern, if a person who was on his own for a long time, can fit back in into a coporation, and it needs some convincing that he actually can - but telling people to fake motivation, when all they actually want is the money - just increases company bullshit.