What Was The Point Of Greg

Narratively,

What the fuck was the point of Greg.

I know there has to be something? I'm just trying to understand what weight his character has on the plot

And I can't exactly thing of anything. I can't think of a single significant thing that he does that impacted the conclusion of the series.

And I was thinking that maybe he was a foil character to somebody(ies). But he doesn't exactly function that way either.

I dont know. Im rewatching the show and he's a very interesting character. His motivations are so complex (though ultimately, like everyone else, he's acting in his best interest).

But like. I feel like if he didn't exist, literally nothing would change aside from maybe Tom not having a physical manifestation of grease to act out his power trips on.

I figured maybe I'm being too dismissive so I wanted some other perspectives.