Not always. DD went to school with a girl who cheated her way all the way through high school. Didn't make any bones about it. In fact, she bragged. She was in a power position on a certain team/activity and minions who wanted to get in her good graces were all too happy to give her the answers, etc. Relatives wrote her papers and did her homework. They got a highly questionable disability diagnosis which allows her extra time on assignments and tests. So she starts a test in class with everyone else, "can't" finish, leaves class and gets the answers from others, and goes back later to finish the test.....with a huge advantage.
When she chose a college, her talent in this activity made her eligible for scholarships and that isn't unusual. But she was not raised by her parents, who lost custody to relatives. Yet her FAFSA is based on the income of the low income parents, so she gets tons of grant money too, despite the well to do relative actually paying all her bills. She uses the same tactics at college as HS. Relatives do all the work they can, her "disability" gives her an incredible amount of extra time to get the answers from classmates who have finished the test, etc. Add to that, her roommate is a tutor paid by the college and roommate does much of her work. She brags that she barely does anything. This has worked like a charm for her and it will continue to do so.
If anyone thinks I'm being snarky about her diagnosis, it's because in the many years I've known her, no one has seen ANY evidence of this disability. No one. And you would notice it. Just about everyone doubts it. She doesn't even see the sort of doctor you'd see, but occasionally goes to the family GP, who just keeps signing her paperwork. And she barely sees him. But she's milked that diagnosis for all it's worth.
I have zero doubt she will graduate from college. She will get a job and continue to play the "poor me" card to get others to carry part of her load. There are just some people who know how to work every angle. I couldn't even carry it off if I wanted. DD's classes are such that we couldn't help her if we tried. But don't kid yourself. There are college graduates who did NOT earn their degrees.