Is Brussels also what you refer to? London?
How do you validate your opinion of DC? Do you live here?
And let’s curb you even further - have you ever been to Milan? Barcelona? Personally it’s been too long since I’ve been in Barcelona, but having been in Milan just last year, I can definitely say that city is rife with “shithole” and struggles to maintain its glorious upscale ends - I much preferred being next door in Torino.
Anyways, a fair correlative measure to a city’s “culture” as I relate it to my field is type and volume of air traffic. For that, DC is a top-10 American city. It’s also, to no coincidence, a top-10 most visited city in the country.
And just because a place manages to be filled with politics and “nefarious” ‘people’ does not mean that stuff replaces or is the culture of that city.