Why have so few banking executives, or any white-collar criminals, been held criminally liable for actions that cost more and have more victims than street crime?

A very few banking executives or white-collar criminals have been held criminally liable for their actions because such criminals often possess the power to influence the decisions of the courts and at times also use their power to destroy the evidence that would work against them.

Explanation:

Though the crimes committed by white collar criminals are way too serious than the crimes committed by common people, the white-collar criminals manage to escape the clutches of the laws by putting to use the best of their resources to try to influence the judges and other systems involved.These criminals have contacts with the people in power, which helps them negotiate with such people and find ways to get the accusations against them cleared.