no invention is greater than other because all invention follows in steps. you may say internet is importatn. But whats internet without computer. And computer inturn runs through electricity with many chips.Each chips is made of millions of transistors, Each trasnsistors has diodes. Diodes are made on the concept of charges ie electrons and protons. We would not have discovered electrons unless we didnt discovered elements. everything has followed a series of steps. if the chain is broken then we wouldnt have been here.