It seems like you are implying that a person who gets an MBA is the type of person who would cheat on a test. This fits with a ubiquitous contempt for MBAs and also project managers that comes up a lot on this site. There is a lot of room for criticism of business schools and middle managers in tech. But if you really think of people like that as more likely to be dishonest you are being irrational.
The business domain is interesting, and intellectually deep and rewarding, but without the money, all interest goes away. The money is the point.
With tech, there are complicated technical mechanisms. They still exist to make money, but, there are many layers of translation in between. And it seems easier for humans to be interested in computers in a more pure way, because of these layers between. Kinda like how a gift card "feels" more personal than cash even though it's a strictly worse gift.
So I think business school attracts many more "ends justifies the means" types of people because of these inherent properties.
In the US we associate business and management with money, so maybe you are right. I tend to think people are people and you get "ends justify the means" types in managers, entrepreneurs and even engineers.