Yea, and the point is that they really should not have picked LGPL in the first place. If you pick a copyleft license, please don't do it because it's cool - do it if and because you care for what it stands for.
However, I thought about it and I think I can get the cases where monetary opportunities started to outweigh what's essentially are political ideals. Happens all the time, heh. I guess I can imagine person not being honest with themselves until the temptation really comes. Especially if it's about casual developers trying to have some money to live comfortably (as opposed to lowering their standards of living), rather than getting rich.
I can only hope it's that and not a simple ignorance.