Because the company is actually made up of the people that work for it, it’s not the shareholders/owners keeping the company alive and giving it “personhood” status, it’s the employees. So it only seems natural that when some of the employees think that something is “wrong” with said company that they’d want to take the necessary steps to fix said wrong thing (with varied degrees of success). Google without its employees is nothing, the same as Facebook or Microsoft without their employees are nothing.