Isaac Kappy gets roles because he doesn't look like everyone else trying to get work in Hollywood. You think he's "gross?"
It's called, being "an extreme character actor." Look at his role in Thor, for example.

True story. Knew a man seeking work as an actor who looked "average." Not until he turned himself into a aging hippy or was willing to audition as a homeless type did he get regular speaking roles.

Also Kappy's main line of work is as a musician working with sound. "Alternative" looks are the norm in the music industry in Hollywood. With a couple hundred thousand dollars in the bank he certainly isn't broken nor used up.

Please walk down Hollywood Blvd where all the stars are on the sidewalk if you want to see desperation and filth.