Sure education isn't everything. The average mcds employee is a good person trying to earn an honest living fit to have a beer with but probably not the best source of sound investment advice.
Put to a vote they would all vote to raise their wages to 15/hr and the vast majority would be unemployed in 6 months because I'd be able to get a better burger somewhere else for less money.
Lets use the fishing boat analogy. So a fisherman fishes for 10 years saving his pennies and investing and builds a fishing boat with his bare hands. He (The captain) then hires 3 hands to help him run the fishing boat. If everything simply came down to a vote there would be no incentive for the captain to save for 10 years and build a boat.
If the 4 fishermen had all saved their money together, and pooled their resources to build the boat equally, then they could have equal say in how the fishing operation is run.