Mayo Clinic Monopoly on Rochester

I just moved here to be with an SO who got a job at Mayo. This city has a strange way of making you feel like an outsider. I got a fast food job and am moving into retail sales soon but I can't help but feel that this city is divided between the ones working at the Mayo Clinic and those in service jobs for them. I was told by a local that it's because the Mayo Clinic basically has a monopoly on the city. Do you feel like that's the case? Is it worth staying if I don't have plans to work in Healthcare?