Why don't Gotham and Metropolis ever have memorable mayors?

[daBronzeBomma]

They're the two most famous fictional cities out there. Yet the people officially in charge of running them are mere afterthoughts, if that.

Why aren't the mayors of Gotham and Metropolis even remotely significant in the 80+ year histories of the Barbers and Superverse, respectively?

Why is so much more ink always given to a city's police commissioner and a city's newspaper editor than to the individual who should be legally running the whole place?

I have to struggle to remember even one mayor for either city without looking it up. I wanna say ... Kroll in 1993's KNIGHTFALL and Berkowitz in 1986's MAN OF STEEL. That's it.

So, if the mayor of either city were to ever gain more importance at this point or in the future, I think I needs to be a misused existing Batverse and Superverse character who get permanent status quo as mayor.

But who?