Cynicism usually doesn't help you, no matter how trendy it might be to be a cynic.
The more likely outcome is that you'll (intentionally or unconsciously) perform poorly, have a bad attitude, and always act like your employer is out to get you. Your managers will notice this and not like working with you. Eventually you'll get managed out or fired, and then your cynical opinion will be reinforced by this experience, even though it was avoidable.
I'm not saying you should think your company is your friend or your family (they're not!), and I'm not saying you should work uncompensated overtime, or buy into the whole company "mission" and "values" and stuff. But do go in with a healthy attitude, get your work done to the best of your ability, and act professionally and, sure, be friendly toward your coworkers, and develop relationships with them and your managers (professional ones, not personal ones, if that's not your thing). If your management still treats you poorly, then yes, absolutely, get out of there. But going in with a bad attitude isn't going to set anyone up for success.