Unfortunately, greed , meaness and corruption are part of dangers for any organisation that manages money. We will never be free of it. I am glad that you appreciate that corruption exists where you live, apart from Spain.
Corruption = a person, or group of persons, who control a sum of money.
That includes anyone who looks after charity income, don't let's forget them. I have read that only 10% gets to those intended to receive it.
Is anyone controlling public spending in the latest flooding crisis? How did councils approve 200,000 new houses, this century, on flood plains? Was money passed without receipts , anywhere? I know that here, in Spain, a lot of construction permits have been given on receipt of "unofficial" money.
We are, all, paying taxes over which we have no control. How to put an end to that? I don't know, because it is a question of trustworthy, incorruptable people being in charge. That is a scarce commodity, these days.