This. There's a real dark side to this 'feel good' culture. I've been into meditation for quite some time and it really does make you much more entitled. You get complacent with low stress and it becomes your new norm. When that new norm gets broken its very jarring and you realize you have less control of your emotions than you assumed. Apparantly, this stuff is like a muscle. If you don't use it, you lose it.
Meanwhile the guys who deal with shit all day don't get fazed as much. Of course the car company screwed up, they almost always do, and the people who work there are barely above working at McDonalds. Having lowered expectations and a low regard for others seem to be the real way toward contentment in the modern world. Sure, that sounds cruel, but its probably true.
We just hired a new guy straight out of school to help out in IT and he's just easily stressed, surprised, and sometimes borderline livid at how bad some of our staff are and how terrible some of our vendors are. Life's different in college as college is something of a meritocracy. The office world and 'real life' are a non-stop shitshow of dishonesty, laziness, entitlement, rip-offs, and incompetence most of the time. You learn to live with it and things like meditation and positive thinking don't really help, especially if your tradition empathizes the 'goodness' in others. Thats simply is a disservice to you. People tend to follow a simple game theory-like strategy in life. They aren't going to be your pals and have your best interests in mind. They will have their own best interests in mind and a lot of times that means being shitty or lazy at their job. No 'happiness guru' is going to change that.
I used to think I could live without cynicism (or perhaps Stoicism) and with always thinking the best of the other person, but it just made me like your friend. A bit drugged up via my own practice and being unable to handle real life, real stress, and real everyday people.