Ah, I took the "economy" part and assumed...
Dangerous. One shouldn't assume.
Still, you have it right on the head, although I may add a niche aspect: Hand picking is great, but not always viable. But make a somewhat niche sort of server, hand pick where you show it off for your target audience, and highlight what's going on. A well planned series of steps to prepare, and then you post a server ad/highlight.
For example, sometimes one just has the benefit of having a violent game to work with already, so griefing is just screwing over your team. And since that there is a logical razor for such a thing, it's hard to prove unless the other team really benefits from having you on the side you're on.
EDIT: Tangent unfinished, reloading.....
Okay, so Violent games like TF2 have two main advantages; easy to set up, easy to locate because steam allows for tag searches and we have nothing like that.
A fine example, the "Furry Pound" TF2 servers. Fur Affinities "Official" TF2 servers. Same game, nice randomized maps, voting for game modes and maps at the end of every match, and a option to change sooner then that if enough people want to. Simple, friendly enviroment. And then we beat the living shit out of each other!
Another good example of a good Niche server, again, violent as all hell... A now dead(IIRC) TTT Server that was only niche because one had to install a skin pack before you joined, and it was a Homestuck skin pack. Oh, and because plenty of people had porn sprays of their ships. Because if Homestuck fans are know for anything, it's refusing to leave sinking ships, and of course, shipping their ships so hard even Homestuck fans have issues with it.