This is a good point. 

From this perspective, leaving the authority and ownership of actions on the platform to the actors themselves and compensating them for it makes perfect sense.

This is exactly what Ethereum has done, indeed.

Ethereum sold fee revenue shares to Layer 2s in exchange for block space, for unlimited scalability. 

Layer 2s, in turn, have started selling portions of those fee revenue rights to financial frameworks (DeFi) built on top of them (e.g. Unichain and Sonic Labs). 

Should these DeFi extract all the value? I don’t think so.

They should be used to build user-facing applications and design human behavior, all in a neutral manner.