Pardon, i may be naive, but shouldn't a stable democratic parliament be somewhat a representation of the citizens who elected them? Do more than half of all serbians have a Ph.D.? I fear this "revolution" isn't what you think it is..
For example a country with multiple significant ethnic groups should probably have a parliament with a similar ethnic split. A country with a significant rural population and a significant urban population should probably have a similar split in parliament.
Within those groups people are going to vote for their best people for the job. That's generally going to be from among the smarter and/or more educated in their group.
That results in a parliament that is not representative along those dimensions.