I'm right there with you. I struggle to make sense of it, but I've found those messages useful as a counterbalance to the messaging or received from a religious upbringing, "I don't deserve any good thing," and martyrdom "real, true believers^TM will suffer. "
It's also helpful escaping the American bootstraps mentality, "hard work will bring you success," and my personal corolary, "if you're not working hard/struggling/suffering, you aren't doing enough."
The thought that success and happiness could just be available to me and that's okay and I don't need to feel shame about it is a pretty radical message that helps to counter my earlier programming.