Because if the company sucks, which most companies do, then probably almost no-one there actually cares except people who have a larger-than-salary financial investment in the company, people who have been there long enough that the company is part of their identity and social group, and people who drank the kool-aid of company propaganda. People who do not fall into a group such as one of the above but who nonetheless tell you that they care are quite likely just lying to you. The person who says that he doesn't care is at least being honest.