I have a masters in psychology. My career? Airbus pilot.
In all honesty I parlayed that degree - when combined with flying experience - into a lucrative human factors/CRM side business (working with Fortune 10 corporate departments all the way down to the single pilot operators). I also spent an enormous time writing in a psychology program; setting the stage to become published. That's another income stream while sitting on a 26 hr overnight.
I went to a state school so my cost was about 26K in loans. Without a PhD. a psychology degree just does not net more than a modest income.
Even then the 100K psych jobs are few and far between. Private practice in clinical would probably pay the most.