I'm going to put down my best friends family
Why would you put down your best friend's family?
Because they are poor and pitiful.
It sounds like you are a bit snobbish. It's very wrong to put people down for being poor. You may end up being poor yourself someday and regret your actions.
They were the ones who were snobbish, they were not rich. If they were rich, they wouldn't be so pitiful.
If you cannot help them at least don't put them down for no reason. You don't know what happened in their life so they ended up in this situation. It's not ok to mock someone for being poor.