Yeah, I was definitely not thinking about it being useful for the individual. But if 1000s of people consider this lottery mining as something they are willing to pay for (without likely profits), as an aggregate, you start forming the equivalent of a small pool of "idealistic" miners, who likely will have less pressure to censor.

On second reading, I guess that's what you referred to as "widespread adoption of "byproduct hashpower".

I agree.