Ideas from the gmail ads team regularly get shot down by product because it would make gmail suck too much and piss everyone off.

I feel pretty bad for the ads team honestly. Like, their job is to basically just ruin products. Literally no one likes anything they do, ever. Their justification for everything is always just "You have to let us do this because $$$" and no one respects that, even though everyone knows that it's how the world works.