The healthiest form of democracy is one that looks after the rights of all its citizens.

With equal voting rights granted to every individual, this naturally allows the largest group to pursue their own benefit to the detriment of the state as a whole.

So if 70% of the population are workers/peasantry, 25% are burgeoisie, and 5% nobility, then with everyone having equal voting rights, 30% of the population will be wholly exluded from the running of the country, and that is hardly acceptable.

Therefore, it would be much better for the good of society as a whole if all classes were represented equally. If there were, say, 90 seats in parliament, 30 should be given to each class, regardless of their population share. This is what a liberal democracy is all about - representing everyone, not just a tyranny of the majority.

Without such checks and balances, the growing benefit-scrounging underclass will simply demand more and more from the government for nothing in return. And then they protest when it all goes wrong - and another Greece happens.