Do you think the world would be better if we had a regulated meritocratic government?
The problem with a democratic republic is that the general public don't make informed rational decisions, and the representatives care more about their own political interests than the short and long term interests of society.
Any form of government is subject to abuse, which is why it would be a regulated meritocratic government. If it wasn't regulated then it would have the same problems with corruption. There would be regulations in place that would prevent the system from being abused.
The criteria for evaluating merit would be decided by a panel of experts. Individuals that performed in the top 1% on standardized IQ tests could be in the panel of experts. The Judicial branch would appoint a selection committee to evaluate parliament candidates based on the criteria of the panel of experts. The parliament would hold elections to appoint three members of the executive branch. To make decisions two of the three executive members would need to agree. A rotating randomly selected private auditing firm would perform routine government investigations and would have the authority of impeach members. I'm not saying that what I just mentioned would be the best options, but it would be possible to put measures or checks and balances in place.
No system is perfect, but there are systems that are better than other systems, and it is important that analysis is done to find the best system possible.
Many people say that the democracy is the better than any other form of government, so why change it. I think that's a little like someone saying that someone from the 1800s saying that a telegraph was the fastest way to communicate, so why change it.