I believe there is no way to avoid activities related to the 'game' as long as one is still in it, but it doesn't matter.
It's like telling one's wife / girlfriend, "Honey, you are definitely my last woman" but then remains as the CEO of, say, PlayBoy enterprise.
It seems to me that those who are here for a really long time and still active are in one form or another doing some sort of business, possibly (or not) making some money out of this hobby from the community, alongside when they search for some 'ideals'. And by existing in this way, they're not exactly (just) looking for 'End-game', and these added activities give them a good balance to stay here.
A few examples: Hasu, Matt3o, BunnyLake.
They can be either full time, or have enough spare time for the hobby, or can manage their time (work, family, hobbies, friends etc) really well.
But even they will grow tired one day.