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It seems that engineering has always been an emotionally rewarding trade. Studies shows that many practitioners obstinately avoided promotion, even surrendering the possibility of higher salaries, in order "to stay entrenched in the actual work of engineering rather than moving into supervisory positions". It\´s not the money but the trade itself that brings satisfaction. The article also cites that certain engineers reached positions of power and influence in commerce and politics, there was a tendency for some of them to believe that, if only a better \´technical process\´ could be invented for society as a whole, then everyone might be happier thus leaving them unsatisfied.