What were the consequences of the fact that government offices in rome were not paid?

All positions in Rome were unpaid, but the duties involved a redistribution of funds. Having received the position, the official was obliged at his own expense, for example, to organize the supply of grain to Rome, build roads and water pipes, and organize entertainment events for the people of Rome. From this it follows that, in fact, the highest positions were occupied by people who had a sufficient fortune, namely: rich patricians and plebeian Nobili (the richest and most influential plebeian families). This led to the fact that, in the first place, their interests and the interests of their class were defended, to abuse of their official position, to extortions in the administration of the province in an attempt to reimburse what was spent.