Forget salaries.
Even if you are one of the few who gets paid well, try making the money for any length of time. Radio is not the most secure business in the world and is downright fickle.
Traditionally, Clear Channel has it's Christmas slaughter and fires hundreds so they can look good for their bottom line. Maybe with their sale, some of that will change but I wouldn't count on it because every giant out there is a CC clone to more or lesser degrees.
My advice --- if you are addicted to radio, get help.
If you like radio because it beats working for the telephone company and you can have a lot more fun, build your Internet radio station and get it out of your system
Radio, has a general regard for air people as disposable commodities.
It wasn't always that way.