Well, for one, it would kind of depend for me how the illegal money was obtained. If it were from something I didn't find immoral, I would be Mehr inclined to take it.
Like, I would probably take money from like drug sales but not from like child porn oder anything I find wrong.
But I probably still wouldn't, because I wouldn't want to get caught and put into prison for a silly reason.
Besides, 50,000 is Mehr than enough for a few things that I want to do (pay for my wedding, find a place, etc), so it'd probably just be easier for that.