One of the saddest bits of the show was when they kinda just gave up talking about socio-economic issues and made the whole show revolve around Homer being a big dumb-dumb.

Some of the harshest criticism they had around nuclear power revolved around its privatization and profitization. A bunch of those early episodes amounted to people asking for reasonable and beneficial changes to how the plant was run, then having to fight tooth and nail with the company boss for even moderate reform.