No. The matter is way more complex. What are we talking about here? Economics? Yes, as the majority of people are proletarians, their interests will be defended more in a really democratic governance. Social? Not really, different from class, social, cultural differences are not mutually exclusive.
(Except for idealists, for them the true opposition is the opposition between symbols and appearances, not the essential things like being able to survive 30 days with a shitty salary.)
Pure democracy is a form of dictatorship, where the majority is the dictator.
Dictatorship is a form of government where a country is ruled by (...) political entity, and exercised through various mechanisms to ensure the entity's power remains strong.