Most of politicians at least here in Europe have not started with a lot of money. You first start in communal politics, then when you've shown your skills in that, your party gives you more visibility among the general public. And then you might get to the national parliament, and if you're doing your job well there, you might end up in a position where you become interesting for voting in as a MEP. Or as the president of your country.

You cannot get into the national parliament out of nowhere, but I don't really know why you should. It's a very tough job, and it's good that you've first had to gather some experience from communal politics before that.

Though, this is of course only how it works with leftist and centrist parties. In the right wing parties the system is apparently somewhat different. But that's one of the reasons I wouldn't vote them anyway.