Employee - Large organization.

Mosquito - Human.

You don't swat a mosquito out of fear, you swat it out of preventing a minor nuisance.

A whistleblower is a mosquito that's bitten a human. The most likely outcome is an imminent, violent swat, resulting in career destruction.

Retaliating against whistleblowers is bad publicity and possibly even illegal depending on what's being uncovered, so orgs do have countervailing pressure to not swat too hard, whereas there is no pressure on a human to do the same with an insect.

Well, unless you're the president: https://www.npr.org/2009/06/18/105574084/peta-wants-obama-to...