As I have seen in the industry (the in, in, if you know what I mean) and then those on the outside looking in...the issue is aligned with the mainstream studios taking less and less chances and doing less original content. They keep playing it safer and safer, and that just means sticking to a core 40 to 50 actors constantly. The trade off, though, is that indie filmmaking is a true boom and allows for so many to hone their craft and truly find out if they want to continue on any of it as a career choice. Make no mistake - filmmaking (any job therein) is a lot of work. Most folks never realize the amount of effort and sacrifice that go into making a film or TV show. Also, yes, there's a huge amount of these folks that are narcissistic as hell. Mostly the "visible" jobs, mind you - directors, actors, producers. If they are required to promote themselves or the project more than anyone else attached to a project, those are the ones you will likely find are the prickly personality types.
I've found a niche and really feel comfortable with the found footage / first person footage filmmaking genres. It's full of newcomers, average Joes, working class, but it's also a genre that defies almost everything that mainstream films have become. FF films tend to still be (and fans expect it from them) stories that can build or be slow burn - characters have depth, so you care about them or at least have solid feelings about them one way or another. FF films therefore have story building, atmosphere building, lore creating at times even. They always have real world sets and practical FX, as well. They just always feel more real, no matter how odd the plot or plot device may be. They are certainly full of work that is often shared with the entire crew, as well. Actors, directors, producers, etc. may be doing multiple jobs to make it to completion, but again, it's a great learning experience and really helps weed out the selfish from the selfless that will either continue making such films or just head off pursuing the big shot, arrogance-laden (admittedly higher profit) filmmaking circles.