Soft Skills we deserve: where to develop them if there seems to be nowhere

The issue of soft skills development in IT is as acute as it is trivial. Maybe it is relevant because we are talking about engineers and technical specialists, i.e. people who are analytical, critical, systematic, concrete and like to break systems as much as to build them. And when it comes to soft skills, associations invariably arise with something abstract, difficult to define and "eternal" in terms of pumping. But are soft skills really something so complicated that they are relevant only if you are a team leader or are going to become one tomorrow?