Tech ≠ Information Technology industry, instead = technology
If we look at it with the perspective that technology is an essential integrated part of the society. Time and space has evolved the world from analog to digital, and there is less likely a road to go back, given the numerous benefits of tech. It's the same question as if AI or robots will replace the humans. They will not. Instead, they will work together - in tandem.
Tech has definitely superimposed over almost all other spaces or industries. It has redefined the professional space completely. Now, with the help of tech, we have the best minds with enhanced capabilities than previously possible. Looking at a layman's life, we may sey that tech made us dumb. But the nuance here is that it's not the tech, instead the internet or over-dependence on the web has made people lazy, because they can find out anything on the internet.
Why everyone is running to tech? only for money?
not really. People run after the best ideas, which make the world a better place, and make our life easier. It's just the fact that due to this, almost everyone is interested to learn tech skills to stand competitive in a digital world, and we may think that other professions are less lucrative. The reason here is that other professionals did not change or evolve with time, as much as the technical workspace has evolved. Due to this, the money is not invested at equivalent scales, however the best experts in any field make more money than a deep tech guy (specially people in business, doctors as well).