other data is less lucrative than the $0 sitting in those static attacker wallets?

i think you're comparing apples and oranges. that they have so far failed to steal any coins does not mean anything with regards to this discussion

I don't know how familiar you are with the sheer scope of malware, black markets, data theft, various extortion techniques, but gaining the ability to drop an arbitrary .exe on Xubuntu.org and actually direct enough traffic to it that people notice it is worth a LOT more than $0.