This is part of the process of adding the complexities. Now you know precisely in what way's you can be exploited when you abbandon which axiom. Yet people do abandon these axioms, and are only moderately exploited.

Is my post not an example of someone abandoning the axiom of independence and not being exploited?

Thus we can assume that real decision theories, when itterated in the presence of people trying to money pump you, tends approximately to the expected utility hypothesis.

I assume you mean "tends to something which is approximately the expected utility hypothesis".