I think the second group has gotten more and more prevalent over the years, and I think it has to do with how college was pushed on everyone for at least as long as I have been alive. They told everyone "go to college to get a good job!", and so a lot of people go to college who have no desire to be there, they just want to get a good job. In fact, even worse, they tell people "You need a college degree to get a good job!" They don't say you need to learn anything, just that you need a degree.
Well, if the degree is the important thing, it doesn't matter how you get it. Cheating is just a way to get the thing you want.
This is a classic example of Goodhart's Law: We created college degrees as a way to measure learning, but once people realized the college degree is what people look for, it stopped becoming a measure for learning.