The downside of infrastructure projects, aside from environmental, is that they can sometimes be huge sources of corruption and waste, like bridges to nowhere. This happens in all styles of government.

You're always going to have graft and waste.

But you can optimize for the types of graft you want. Do you want them paying 20 labourers to do the work of 10? Or inserting a mountain of consultants and converting cash into PowerPoints? Or simply marking up materials and labour? I'd expect different projects attract different types of leakage.