Golem (www.golem.network) is building a general-purpose distributed computation platform where people who need compute power pay using cryptocurrency. And developers can build software to run on it (and get paid when it's used).
This might work well with Golem (www.golem.network) because they've implemented WASM which opens up many possibilities. I haven't found a cheaper way to render.
Yes, this is the idea. Enclave technology should improve over time, whether it's SGX or something else. And Golem is working with Intel, Texas A&M and others in creating an environment called Graphene (https://grapheneproject.io/) where applications can easily be run on SGX.
It's not one of those ICO scams. Maybe you'd prefer their GitHub page in which the team has written over 100,000 lines of code. https://github.com/golemfactory/golem.
It's a marketplace so you name your own price and at the moment, it's used for CGI rendering, but next week there are more use cases being added, specifically WASM.
What's great along with Blender, is the availability of very very inexpensive rendering using https://golemgrid.com/. It's name your own price and can be had for 1/10th the cost of using a render farm.