What percentage of whistleblowers are punished, directly or indirectly, for their ethical behavior? What percentage come out of the experience worse? Worse finances? Worse health?
The incentives aren't there to behave as an ethical human being in business beyond getting caught breaking the law (for a narrow definition of ethics).
I say this as someone who fought for the smaller fry multiple times (one sexual harassment victim, one employee at risk of losing their visa, and multiple teams getting done to) in the workplace and came out of it with autistic burnout (I didn't know then about my autism) from the emotional labor leading to unemployment.
The incentives aren't there. I wish they were.