When one person gains the ability to reshape the world according to intention, each attempt to fix a problem generates unforeseen and often worse consequences, because reality is too interconnected for any single will to edit it cleanly. Solving overpopulation produces a plague that has already killed billions; ending war produces an alien invasion that unites humanity.
George Orr, a man whose 'effective' dreams retroactively rewrite reality, is sent to psychiatrist William Haber, who discovers the power is real and uses hypnotic suggestion plus a brainwave machine (the Augmentor) to steer Orr's dreams toward curing social ills. Each engineered dream fixes the stated target but warps the whole world, until Haber tries to take the power into his own head and nearly unmakes reality.
George Orr embodies a Taoist ideal of non-interference: he regards his reality-altering dreams as a violation and wants only to stop, insisting that the right relation to the world is acceptance rather than control. His passivity, framed by others as weakness, is presented as the sane response to possessing dangerous power.
The person doing the damage is not a villain but a reformer sincerely trying to end suffering; harm flows precisely from his confidence that he knows what the world should be. Viewing the story this way reframes utopian ambition itself, not malice, as the hazard.