You ever think about how it's not anyone's job to dole out these lessons? Like, what purpose does this mindset serve? If someone is being a dick, they're not doing it for the person on the receiving end's sake, they're doing it to cut down the person they're speaking to. Treating others with respect shouldn't be based on expectation of reciprocity, but because you operate in a way that is innately respectful to other people. The pep talk you're giving effectively minimizes OP's feelings, and I think you should reflect on why you're taking this approach.
Sorry the this happened to you, young monarch. You deserved better, and Reborn is capable of that. I do hope this hasn't soured your image of our wonderful community.