I used to work for a shop and I made a video for them just for fun, not expecting money. I worked my ass off filming and editting it, using an editting machine, not a computer. The asshole manager (who eventually would go onto steal money from the shop, putting it out of business) made a big deal about how I wasn't going to get anything for this, something which I already knew, but the way he put it, as if I was just trying to con him or something pissed me off enough that I took the shop's name out of it entirely, took out the parts from the guys who I had issues with and were only on the team due to the fact that they were buddies with the manager anyway, gave full parts to some friends who didn't ride for the shop and released it myself, just because the guy was an ungrateful prick. All I wanted was a thank you. I sold it for $5, or was giving it away for free to anybody who gave me a blank vhs tape. All the footage and hardwork was mine, and luckily the sponsorship was so shitty (the kids who skated for the shop got like a 10% discount, and if they got hooked up by anybody outside of the shop, the manager would do what he could to fuck it up so they would keep buying shit at 90% price) that nobody got pissed at me.
The only thing that really fucks filmers is that for every professional filmer out there, there are 500 kids trying to get the gig who will do it for cheaper, I'm sure most guys know that they are replaceable, which maintains the shitty situation.