Are dummies better off among smarter folk?

Smart people will push dummies out of leadership positions and out-shine them in competition.

But societies progress and gain a whole lot from that, though the egos of the dummies are hurt.

Provided they are not cannibalized, figuratively or literally, the dummies are all the better off for it.

Does this have anything to do with the real world?

Oh, yes.

On the other hand, as civilization progresses and becomes more reliant on technology, there could be a problem.

At the extreme, in the far future, the last advance in robotics made by humans will put the last human out of a job, leaving a society of robots doing all the work and doing everything so much more cheaply - if only because it takes less to produce a robot and keep him running than it does a human worker - that humans live lives of blessed, or accursed leisure.

But long before then the demand for the labor of stupid humans could shrivel first and pretty fast, so that in each generation more and more humans are too stupid to be employable in straight-up, fair competition against other humans and available robots.

Creating a politically volatile situation.

Are we, in fact, already there?

Will it only get worse as the stupid are much more fertile than the smart?

Or does the problem solve itself because, as the smart are less numerous and society becomes dumber, the threat of progress making human workers obsolete recedes?