It depends on the individual; your college degree gets you your first job after college. After that, it's experience and relationships/contacts.

I know of English and Liberal Arts majors that are doing very well in tech fields doing work other than development: program management, developer relations, customer success, sales, marketing. Some in development too, just not as many.

The difference with those folks is that all of them kept a broad understanding of where they wanted their career to go, and allowed themselves to take on broader responsibilities and deeper challenges as time went on.