Recall that early in Gervais' monologue he said "Remember, they're just jokes. We're all gonna die soon and there's no sequel, so remember that."
I suspect this was intentionally written to be inclusive of himself. I can't help but think that he has his own skeletons along with everyone else that has "paid their dues", and he figures if everyone is going down together then he'll at least be the one with the balls to get the jokes in at their expense.
Transcript:
https://www.hollywoodreporter.com/news/transcript-ricky-gervais-golden-globes-2020-opening-monologue-1266516