Would I prefer to live now than 2000 years ago? Certainly. Is that because of today's systems of governance, rather than today's technology? No.
It's a fantasy to believe the ruling class are not in an eternal struggle to take more, or that they have ever only restrained themselves due to the threat of revolt.
> I'd hesitate to call it real power as well. You could not just go against someone of let's say senatorial class or god forbid, the Emperor himself, without substantial (military) backing and/or being an untouchable demi-god yourself.
I wouldn't hesitate to call it real power. You're trying to make it an all or nothing thing, but it's not. There's a lot of power between cockroach and omnipotent.
> Today you can take the government itself to court and actually win.
And what does "winning" mean? It means the government decides that it must take some money from other citizens and give it to you.