Technology seems like a pristine manifestation of scientific rationality, until we look at it more closely. Then we see that it depends not only on the pristine pursuit of scientific truth, but also on the still rationally unjustified institution of private property. The discrepancy becomes more readily apparent when we look at real life engineers, who, despite our pristine rationality at work, use the resources we obtain from our enterprises no more rationally than any other professionals, squandering them on monuments to our egos while other human beings suffer from lack of food, shelter and education.