There is no shame in an honest day's work. Don't let people like that get to you. Unhappy people love to try to spread the misery.
I know I've spent a lot of time complaining about my job. Sorry if it's getting annoying. But I hate it. I just had some guy very rudely tell me to get a real job. I wonder if he would be happier if I just kept getting pregnant and having kid after kid so I could live off welfare? Or I could make and sell drugs? At least I'm working. That's not a dig against people who are unable to work. My point is, I don't think you should look down on anyone who's working for a living, regardless of what their job is - as long as it's legal, that is.