I can understand one motivation to cheat: exam grading is very unfair at the individual level because your performance has a high variation depending on factors outside of your control. Those factors are random from the perspective of a test taker: the exact questions, whether you had a flu, family circumstances, and hundreds of other factors that are independent of your ability. Apart from the fact that exams strongly measure the skill of passing exams, yet often poorly measure actual ability for the subject.
The unfairness depends on how steep the cutoff is: does 89.9% mean you miss out on an important life goal, whereas 90.1% means you win?
I did a quick google to find facts on expected individual exam mark volatility, but couldn’t find anything - what keywords do I need?
One pattern to the results I did read is that individual volatility is not even acknowledged - the unwritten assumption is that exams are completely fair and volatility has other dominant causes.
Edit: I am an engineer type with some spectrum attributes and I loath cheats, but over time I have seen how important some “dark” skills are such as: deception, judging when to ignore rules, and meta-games. In some roles or countries, perhaps cheating is a good quality? There is a reason the best card games are about deception. Cheaters are also risk takers, and taking appropriate risks is associated with entrepreneurship. Risks with extreme downsides are interesting.