When the company values on the wall have nothing to do with how people are actually treated

My last company had five core values printed in every meeting room. "Integrity." "People First." "Excellence."

In the same company: people were let go via WhatsApp message, a manager who was known to belittle staff was promoted because he hit numbers, and a whistleblower was quietly marginalised.

Values that aren't enforced downward are just decoration. The test of a company's culture isn't what they say in the all-hands, it's what they do when the behaviour of a high-performer conflicts with their stated values.

If they protect the high-performer, you have your answer.