This is offtopic, but I have to point out that these sort of cynical pronouncements are somewhat dangerous. You are probably coming from a good place and trying to warn people about being too trusting, but I see a risk in these sort of statements in making younger readers believe that this is a normative statement (as opposed to the positive sense I think you meant it in). Ideally HR does have something to offer the employee, balancing their interest with the company's. Let's not retreat entirely from that ideal.