The USA seems a good example of what happens when politicians are fully dependent on corporations if they want to be elected, and it's servitude to the interest of the few.
It certainly seems a much better way of doing things than the US.
The share of the pie to parties is proportional to the number of votes their congressmen received in the last election. And the voting system is bizarre. Multiparty system in Brazil is a joke, mostly parties doesn't have ideology or political coherence. It's simply power for power. If you vote for candidate A from party X that is a good guy with nice ideas you will probably help instead to elect candidate B from the same party which is a piece of shit. On last election a popular Youtuber and outsider of the political system received a large number of votes but due to how the system work a bunch of trash from his party got elected along. End of day, when he tried to make the right thing he didn't have the support of his own party.