There is a general rule for comedy and art: **always punch up, never punch down**.
We let comedians and artists and miscellaneous jesters do outrageous things as long as they obey this rule.
You can poke fun at yourself, you can make a joke at the expense of someone with higher social status than you, but if you mock someone with lower status, *it's not cool*.
Source: [Bots Should Punch Up](https://www.crummy.com/2013/11/27/0)