You cannot really use the argument that democratic mechanisms are flawed because they potentially empower foolish people to impose their will while they do not have any understanding of the issues. First of all, that is a deficiency in the education system, not the political system. Secondly, in places like the US and UK, the ignorance of the population is something deliberately promoted. Both countries have a history of dynamic, informed, and very politicized populations; with active labor unions and civil society groups dedicated to educating the public about vital issues.
These types of organizations and groups have been under attack for the last 60-100 years, until today they are barely present. Furthermore, popular media, corporate media, intentionally seeks to distract, distort, and de-politicize the population, to circumvent the potential threat they pose to elite control with which access to democratic mechanisms empower them.
None of that is inevitable. It is possible for the masses to not be stupid.
It is also worth mentioning that the reality is that, no matter what system you have, you will always have to contend with the population. Any government, whether democratic or otherwise, always must have the consent of the governed, simply because the people always have the power to overthrow it. You may recall what happened to Emir-ul-Mu’mineen ‘Uthman bin ‘Affan.
So, no, the problem is not that democratic mechanisms empower foolish people, the problem is that a condition for democratic mechanisms to function productively is that the population be educated; but this is not a problem specific to democratic forms of government. In any society, when the people are kept in ignorance, the government is highly likely to be corrupt, and if it is not, a righteous government will not survive an ignorant population. This has nothing to do with the political system