I can only vote for candidates standing in my region, both in UK and Germany.. I'll grant the UK could be more democratic too, but the EU is as democratic as at least some of it's member states.
All that don't just have time ordered feeds, or feeds which are highly configurable by the user anyway. I guess mastodon doesn't fall under this category..
While billboards are annoying, a) everyone sees the same, they aren't tailored, b) they aren't as ubiquitous, most people don't spend as much time looking at billboards as they do at various feeds and c) they are only show 1 advert, I would say an equivalent to a feed would be every billboard in a part of a city showing an advert that sells the same thing in a slightly different way.
To the point where I'll click away if they don't give me a way to opt out, or if I feel like they're taking the mickey too much. All those cookery websites that are so snooty about cookies as if there weren't 10 more similar websites where they came from...