This is a classic example of the cobra effect where Geek Squad employees are incentivized to plant child pornography on customers computers.
There's undoubtedly far easier ways for an corrupt employee to get extra cash that don't risk getting a conviction for sexual offences and for fraud/deception.
Moreover, your work colleagues have an incentive to report you too.
I'm not going to say no-one would ever, but the level of short-sighted stupidity needed is very very high.
Sure there's some chance of the employee being caught, but more than likely they won't be. Plus, why would your work colleagues report you (once, for $500) when they can make their own $500 repeatedly?
Remember, and this is the important part - criminals are not typically longterm thinkers. They don't think about retirement, medical expenses, or even next week. They're simply interested in obtaining the thing they want today and believe, reasonably or not, that they can get away with it.
Its like weed growers on state-federal owned land. Worst thing that happens is they loose their job, in most cases. Woop .. flip burgers.