It gives congress its power and limits. it creates the two sections of congress
It would be like the government that is in the USA, it can't be a direct democracy as that would mean everyone votes on everything. Not only is it not efficient but also the general population often does not possess enough knowledge. That's why we have electoral college votes in USA because the people are not trusted.
During WW2 the military was inventing the atomic bomb then later launched it on Japan