The US has this bizarre setup where we “regulate” companies through the courts rather than directly through government agencies (this is not always the case, but it often is). The problem is that even when this “works”, i.e., the court punishes the company, they get a fine. So it becomes a financial decision: if we can get away with this, does that outweigh the risk that we might not? Sometimes it ends up profiting the company regardless.
Related to this is that prosecutors have total discretion in the realm of plea deals. If you do a crime here, it becomes a negotiation with the prosecutor. What can you offer them to get off the hook? Sometimes it makes sense to do a crime, because the advantages you gain become leverage to negotiate your way out of punishment.