Margins are high. The video game market makes twice the combined revenue of all film/music markets combined.
There are 20,000 games released per year that split all that revenue, minus the cost of building those games.
My point about revenue was that games are pulling in more money than film and TV and we all know they cost less to make, and film and TV has good pay so therefore the games industry can afford similar rates, if not more.
There isn't any business on earth that compares to the margins of HFT firms. Regardless they aren't asking for big tech or HFT level salaries.