Yes. How many ways do you have to reliably monetize a portion of that $100 that goes to the utility company, though? At its core, proof of work (not Bitcoin's anymore because of ASICs), allows that.
I dont need to monetize it, I can keep the $100 and not buy the energy. And it's not "reliable" if I get rug pulled (extemely common) or someone else has a more effcient mining setup (extremely common).
Maybe if I'm stuck on inefficient resistive heatong in winter, mining makes sense.