Also embezzlement or violation of tax code. Sometimes even racketeering.

"Fraud" is applicable to hacking contracts, not law in general. But yes, that's an example of what I meant by "fundamentals that undermine hacking".

Similarly, relying on technicalities you will still get tripped up by mens rea.

But other model-playing optimizations like tax avoidance are perfectly acceptable. As I said, "minor advantage" rather than "full compromise".