Federation Capitol

It's a huge huge huge universe that revolves around a corrupt government that looks like utopia from an outsider's perspective. 
Travelling from planets, even in different galaxies, is feasible and considered 'usual business'. In most cases, whole galaxies (much less planets) slip through the cracks and become havens of illegalities or ridiculous FC-law loopholes that allow the rich to get richer and the poor to get poorer.