It's been my experience that folks with degrees in psychology do quite well in corporate sales.
I have never understood the inclination among some science, engineering, and business grads to bash liberal arts degrees.
Plenty of scientists can't write and are terrible speakers. Some psychology majors are bad at math. Any organization needs a mix of talent. Good writing skills, an ability to reason, and good speaking skills are at a premium in value.
My opinion? Study what interests you, study what you like, study what you are passionate about - and the rest of life will fall into place if you have ambition and commitment.
One of my cousins was an Art History major at a Canadian university - and I think she might make more money than me!