Ok, this is similar to Gridcoin (https://gridcoin.io/) , Golem (https://cryptoslate.com/coins/golem/) , SPARC (https://sparc.network/) , et al. I could keep going, but the point is, something like this exists. And we are seeing the issues of what happens when you embed a program that takes advantage of processing power. You get things like Coinhive (https://coinhive.com/), which were meant to be benign, turned into botnets.