>A huge amount of dedicated and incorruptable revolutionaries are required in every country

The problem with any sort of administration or governence is that no one is incorruptible. Seriously, no one. Not even you, OP, despite your obvious philanthropic desires. You are correct in that the success of the West is not due to its democracy; it's because of the system of checks and balances.

What you need to do is set out clear, simple mandates for the government--enforce tariffs, fund schools, and so on--and keep the government heavily segmented, with each part patrolling all the others. Decentralize and limit power as much as you safely can. Then you've got a government safe and loyal to the people regardless of whether it's based on democracy, communism, or fiefdom.