Theres a difference between ridiculously large buildings and ridiculously large cities. WoW had over the top ridiculously large buildings but that matches its aesthetic, you need gates that large to fit through with shoulderpads like that. All the cities though were all pretty small. EQ1 had small cities with realistic sized buildings for the most part.
Shit like eq2 and vanguard is where we started seeing ridiculously oversized buildings in ridiculously oversized cities.
Hop on the vanguard emulator and get lost in some of those cities, jesus fucking christ talk about waste of space.
"Yeah heres some ruins and shit of a city with walls the size, height and thickness, of the great pyramids of egypt."
"Wait, ruins? How did the city fall? Walls were too large to maintain im guessing"
"No they were besieged by..."
"Gonna stop you right there. Unless the next word is dragons, they werent besieged by shit. 500 foot thick 500 foot high walls around this city, how the fuck you getting besieged?
Also since there are dragons in this world why the fuck would you ever build structures like this?"