Close, but incorrect.
Plato believed in 4 different political system of government. You have the aristocracy (which he believed was the best system because the foremost experts of each branch should be the most entitled to do the job and do it by passion), Olicracy (a breakdown of government and its constituents; according to Plato. It is when the parliament (or establishment) is only occupied by nominations and by the bourgeois and can not be attended by the citizen.), democracy (a good temporary government because electing peers to run government can function until the bourgeois take it to promote their business and wealth. This system however degrades to the olicracy, then to tyranny) and Tyranny ( where a small group of people control the majority, often with brutality to discourage opposition).
I can say, be are in the Olicracy era. Elite people that are not elected (they are promoted) high in the government agency are those running the system. Political leaders are all about taking the heat. Face it, most elected members are the most useless people on the planet; they cant even hammer a nail with a hammer. But, if you have tried to get into politics, you will be its a fierce competition. The guys in there, never want to leave; no matter how bad they are doing their job.
Business has infiltrated government. People who have a crapton of money will lobby and sway legislation for their company (or industry) or directly get involved in politics in order to get a return on investments. Government today is not just dictating market, people in the market are controlling government to control the market in their favor. How we have a shit show of politician lobbyists seeking control without accounting for the people they should represent.
The next step in tyranny, unless someone cleans out government. The people in power will centralise power for themselves and begin forcing the citizen to stand in line while the government are out breaking the same rules they apply to their people.