Or alternatively, it's evidence of the kind of ethics that helps you succeed in business, and the VCs made the most profitable decision. Consider, e.g. Steve Jobs scamming Steve Wozniak out of the bonus for Wozniak's Breakout circuit board design.
I've found the less intelligent someone is, the more likely they are to act this way. Perhaps an evolutionary defense mechanism. Lacking the ability to really process things at a 2nd/3rd Order level of thought perhaps frees them of the guilt that would result from doing such a thing?
[1] https://www.businessinsider.com/how-mark-zuckerberg-hacked-i...