@kissane kicking the can down the road to a solution - here's my 2¢:

As a regular vegan you learn to moderate expectations. Same again as a regular Linux user. Then there's regular cycling, sailing, hiking, gardening, eco-living, …

Eventually self preservation kicks in because a fully fledged extremist can establish a hate group with ease. And a hater can nitpick over the most mundane problems.

A modicum of reality becomes a life vest in a sea of perfectionism.

If nobody I know picks up a better way of living through me, then why would I strain myself to be the nth level guru? I'm not seen as a role model in any of my departures from the norm. I get happy to normalise until further notice. Yet, I work my butt off within the establishment of a better way.