Well, I think that the demand of developers is not so much because of the increase complexity of systems but because a lot of companies think they need develope

Well, I think that the demand of developers is not so much because of the increase complexity of systems but because a lot of companies think they need developers, when they only need technology, and a lot other think than just adding more devs is the solution (the hyperinefficiency of the hipergrowth companies is at this point legendary, as the guy earning $1.5M/y getting and losing - but getting paid nonetheless - multiple tech jobs at the same time proved)