You can't make a dev pay $100/minute for music anymore than Samsung can make you buy a $15,000 HDTV. There's no magic trick to landing paying jobs in music - you have to be at the right place at the right time, the right man for the job working for the right people who just happen to have thousands of bucks to spend on a new guy.
Why would they not want to spend thousands of bucks on a new guy for music? Because from a musician's point of view, the music is the most important part of the game, but from a developer's POV, it's one of the least essential components to making a game that might be quality or successful. The fact that most games allow you to turn down or even OFF the music without objectively hampering the gameplay pretty much tells you everything you need to know there. As far as I know, a game has never failed or succeeded from the soundtrack alone. If it does happen, it's very rare. They have to think about more important things like programming, gameplay and, yes, graphics are more important.
I recommend you not think about getting $100/minute without even starting to make money doing music yet and focus more on the art. Don't be "confident" in your ability, keep going and improving, because THAT is the only thing that will help guarantee you make any money at this all (notice I said HELP guarantee). You have to earn that position. You have to start at the bottom doing it for free and peanuts just like the rest of us and earn your equity as an artist. Being hardline about money and payment just for noodling around like all the composers tell you to do is going to stall or even counter your progress.