The counter-argument to these sorts of notions (including things like legislative term limits) is that, in a sufficiently advanced political environment, this will make your representatives even more dependent on entrenched power-brokers to be effective—chiefly, bureaucrats and lobbyists.

Unless their job is held for them while they serve (like maternity or military leave), they're going to spend the final year of their term job-hunting. Do you want your elected representative handing out resumes to powerful people hoping to curry their favor?

Why should society be based around people having a ‘normal job’?

It shouldn’t necessarily but it is, so until that changes the political system has to account for it.

If you build a political system around that assumption, it’s not going to chance.

True, but what I meant was, in the context of the conversation, that the system must not be ignorant of the fact that regular people need to earn a living, and provide opportunities for regular people to participate without sacrificing a significant amount of time to fundraising.

I don’t know what the best solution is but if the system is only practically open to those that don’t need to work for a living then things surely will stay the same.

This, I agree with, but is a very different idea.