Ravenous Bugblatter Beast of Traal
I had fun subverting this is one campaign I'm running. All of the characters were chosen by these mask relics of the (failing) Imperium. It made the agents of the Imperium, responsible to the Child-Empress. Who sent them over (magic-nullifying) seas to a new land with the right of High Justice - they could legally try and condem a person to death, as well as having a bunch of other authority. At level 1. They quickly got involved in what would normally be "mid to high level" category things, doing what they could with diplomacy, intimidation, and the force they could bring to bear.I'm not sure I can explain it very well, but I expect, in "high-level" play, for the characters/players' decisions to affect something more than themselves. They might not be the leaders of groups themselves, but they're probably involved with the world in ways that "novice" PCs aren't and as such the things they do, the opinions they express, and what is expected of them creates a different set of stakes than is mostly the case for beginning characters. Which isn't to say that characters starting out can't be leaders in a community and I've been in a very fun game based around that exact premise, but it's something that's more common and more expected when the characters are powerful.