One more thing is the distributed nature of giving it directly to schools. While you're always going to get some corruption at a principal level, there are alr

One more thing is the distributed nature of giving it directly to schools. While you're always going to get some corruption at a principal level, there are already in-built checks and balances via school committees to see this kind of thing. If you hand out the money to 10 construction companies, having just one of those doing dodgy deals means 10% of the deals waste money. If you handed it directly to principals, you'd need a massive number of misbehaving princiapls to get the same level of waste. I know the numbers are made up, but the point is, the further down the chain the money is distributed, the less likely to waste a large percentage of the money you are. In addition, audits could be handed out at the same time to local accounting firms, to check the money was being spent correctly (ie on buildings and not sporting equipment or new cars) - further providing economic benefits to local economies.