The coup in thailand that happened 2 years ago that led to the current military government I can honestly say is a successful and a positive one. They have successfully uprooted some deep rooted and engrained corrupted systems and officials/policemen/comnected well off elites and for the most part has brought about a peaceful and joyous 2 years for the people there.Iran, Iraq, Egypt, Libya... The list goes on and on...
I honestly can't think of a single case where a coup actually brought on positive results.
Can anyone point to where a coup triggered the desired result? I can't.
The world as a whole has frown upon the coup at the time and even now.. but unless you are the actual people living there you don't know what it's really like in the old days vs now. Granted it's not entirely democratic but it has worked.
So why did the democratic system fail? Because the Party that always get voted in knows how to pursuade the under priviledged and the under educated living in rural areas that accounts for 70-80% compared to the 20-30% of the better off well educated people living in the main cities (there are 70+ million people in thailand only 10-20 million of which I would say are well off and educated). The popular Party is owned by one of the richest man in the world afterall... and vote buying is the norm.
So yes sometime the democratic process still fail in many parts of the world sadly....