Look, a job that pays almost $90,000 is nothing to sneeze at. But many people assume trained professionals who analyze and treat serious mental and behavioral disorders make a lot more than this.
Part of that might be because they're confusing psychologists and psychiatrists. The latter are fully trained doctors who have undergraduate degrees, have graduated from medical school, gone through four years of residency, and possibly other specialized training. Psychologists, on the other hand, generally require a doctorate degree, but sometimes a Master's degree will suffice. But they still might need an additional year or two of internships to obtain licensure. Also, pyschologists generally aren't allowed to prescribe medication while psychiatrists can.
But regardless, psychologists study cognitive, emotional, and social processes and human behavior by observing, interpreting, and recording how people relate to one another and their environments. It's an important and difficult job, and one many incorrectly assume pays well into the six figures.