I never saw primal fights go for that much. I think the most I saw was 700-800k, and that was for Titan itself. Most people didn't need help prior to that, it's just that Titan is a large step up from the general "difficulty" level of the previous parts of the questline. I think that trying to take so much gil out of the economy is, however, a bad idea. Most of that gil isn't circulating as is, but completely removing it will leave even less gil circulating - which leads to deflation. Which we're seeing right now. Between the housing situation and bots dumping on the markets, it's really become frustrating and discouraging, to say the least. Hopefully, as the prices on housing are finally lowered to reasonable levels, things will pick up again.
What if their FC doesn't have enough people, or not enough people at max, or what if they aren't very good at the PvE part of the game? People join Free Companies for all kinds of reasons, and only one of them (raiding) is one that would help with primals. :) People on my server and others have sold Titan kills and such, and I personally don't see any issue with it - if people want to spend their money there, then by all means.
I understand your frustration. Please believe me - I really do. But you need to be careful how you phrase things on this forum. Cussing, yelling, and verbally abusing people isn't going to get you anywhere - and may very well earn you a forum vacation. :(
