Only morons are motivated by money that will be earned by destroying the civilization that confers value on that money in the first place.
Well, I'm not going to die. Other's might, but I'll be rich either way.
Or: Global warming just means I'll have to sell my beach house for a villa on a hill and leave the AC on a little longer.
But there is also a chance that you get insanely rich and the world isn't destoyed! It's the entire logic of SV and VC.