It's more than a little cynical to assume that most of us only care because we want to make money or grow our business.
The way I see it, as people who have more knowledge about this domain than the average user, it's actively our responsibility to act in the best interest of the user (our parents, friends, etc.), even if said user might not appreciate or understand the effort.
In the same way that I appreciate, say, doctors actively working against stupid/pointless stuff (homeopathy, avoid vaccination), I appreciate IT people trying to think beyond the immediate convenience of AMP.