Employees regularly (as in, basically always) join startups for peanuts in equity compared to the equity held by founders. And they're told "we're in this together, we'll win or lose together"... without realizing that the stock they received was so tiny, that the founders' Win means a private island and trust-fund grandchildren, while their own Win will be one fifth of a down payment on a house, even in the best outcome.
The cap table isn't revealed to job candidates, but they still get vague reassurances that they're being offered a "great package." If they saw how their package compared to the founders' holdings, I think employees would demand a hell of a lot more equity, for the risk they take.