My roommate said that I am too smart for my own good; What did she mean by that?

I get told that once a week from other roommates, for using words like prorogued and talking about going into municipal politics in a few months . I am on disability for a mental illness that, is treated and under control.
~ I am looking for work at fast food or politics. Both sound like fun jobs… to be on city consul and flip burgers part time. What do you think people mean by I am too smart for my own good?