It's not a dismissal of those who 'did not attend university'. It's a dismissal of people who are devaluing a university education because they did not attend university. There is no reason to believe that 'the working class' (not sure what that means really, many of us all work for a living) can't think for itself, but we have to be honest in an uneducated person thinking they know more about economics, climate change, business, etc., than those who have studied it and/or had careers in it.

Look at net neutrality, it's been completely framed by the republicans as anti-business, and they have appealed to the masses that are uneducated in how the internet works and why it was successful in the first place. But what would those of us who are educated and/or do development know? We just work using the internet all day, every day.