How does the David Williamson use conflict as a way of exploring ideas in his play, 'Brilliant Lies'?

How does the author use conflict as a way of exploring ideas? "The play of conflicting interests in a framework of shared purposes is the drama of a free society. It is a robust exercise and a noisy one, not for the faint-hearted or the tidy-minded." A conflict is a clash of opposing principles, opinions or natures. All plays must have a central or series of conflicts to create dramatic tension in order to engage …

…the end, Williamson forces us to ask ourselves how readily we are tempted to give up on our own larger principles and values for the ease and comfort of personal gain. How difficult it is to act consistently with our values in the face of contradicting priorities? "One might as well try to ride two horses moving in different directions, as to try to maintain in equal force two opposing or contradictory sets of desires "