Some people can bullshit their way through life forever, but I've seen a lot of more bullshitters stuck doing entry level crap for a long time because their limits became apparent...
Or that perhaps you have a better plan for your own education than a cookie cutter curriculum that is intended to applied indiscriminately to millions of people and hasn't been updated in 50 years.
Let's not pretend most people happy to cheat their way through to the eventual level of their mediocrity are doing so because they're doing a bunch of other learning.
I knew a few people who cheated and gamed the system at every opportunity through high school, all in the name of getting into the best universities.
They got absolutely crushed in college when their old tricks stopped working and they had to actually do the work. One of them got caught cheating and had a wake-up call when the university threatened him for it. He eventually put in the effort to grind it out and graduate a year late, but graduated nonetheless.
He's mentioned that he could have saved himself a lot of pain and suffering by just engaging in school the first time instead of cheating.
This idea that you can cheat your way into a job and then just coast doesn't really match reality. It may work for some people who get into weird jobs that don't fire people, but the idea that it's "optimal" to cheat your way through life until you're handed an easy job doesn't hold up in practice.
I sit down in the actual exam and lo and behold the questions in the test were exactly the same as one of the previous years I'd been using to study, I guess the professor got lazy.
Cheating worked.
The box-checker mentality of avoiding the labor of education in quest of the easiest path to a degree is a sickness that is plaguing corporate america.
You can be fairly confident that understanding the intricacies of Catcher in the Rye won't be important in any compsci paper or dev job, but the writing skills from the bullshitting are still useful.
Eh, when your future career prospects hinge on what grades you get it's perfectly rational to optimize for getting those grades over learning "properly". Especially in subjects you know you're already competent enough in or that aren't relevant to your future goals.
It's stupid in weightlifting because nobody is going to pay you a higher salary if you can do 15 reps instead of 10.
(Although there's a related and opposite problem where people massively overestimate how important their highschool grades are and get unnecessarily stressed out over it.)