Comment by pron

It's possible that the company's values or behaviour have changed, but, more importantly, the decision to work at a company is mutual: both sides want it (the company expects the value an employee will bring exceeds the cost of their employment; hiring someone is not a charity), and they enter into this relationship when neither side knows everything about the other, certainly not how they would behave in the future. Just as the company can and does exert pressure on employees to do something they might not want, so can the employees try and exert pressure on the company to change a decision.