First past the post is bad for the poor

We know that if banks can inflate the currency this will be bad for the poor because only those with access to banking services will be able to get the benefit of the new money. So then the poor will want to remove deposit insurance from the banking industry but to do so requires the consent of legislators who are (apparently) predisposed to subsidise the banks. The only way to remove pro-bank legislators from office is via elections but if we have a two-party system this becomes almost impossible and so we are left with a subsidised banking system which can print money. To prevent bank inflation requires full democracy. If we do not have pr then banks will continue to be able to print money which means that the poor will continue to be disenfranchised by the state-subsidised banking system. First past the post is bad for the poor because it enables the banks to retain deposit insurance.