I wouldn't go that far. He might head a WEF-like organization, but it wouldn't be the fake "social responsibility" bullshit they've got. His WEF would be dedicated to ensuring his fame, reputation, and legacy. He wouldn't stoop to the live-in-a-pod dystopia because that does not fit his vision of a prosperous society.

Lex is extremely egotistical and self-centered. The whole reason he is even a villain is because he sees himself as overshadowed by superman, and does stupid things because of that. He wouldn't create a society where people hate him (pod+bugs is extremely unpopular), and he would not suffer his nation to retreat for any nebulous cause such as "climate change". If anything, he'd actually build a nuclear powered electric grid and shore it up to actually create a prosperous no-carbon society, so long as his name gets stamped on it.

The big thing to worry about in a luthor presidency is what he would do in the face of rivals. We're talking clinton-style assassinations, no-bluff nuclear threats against foreign nations, and Trump-style drone strikes on powerful people who threaten him. He also wouldn't be above orchestrating a 9/11 style disaster in order to capitalize on the cultural shock. We're basically already there anyway, so I don't really see this as a loss.