Overall, it'll be a worse world if you can't make a living purely on hard skills.

If soft skills is mostly about sucking up, and there is no demand for any hard skill, you'll find society less able to stand up to the pressures of a majority group, because guess what, they're all too scared to stand up as an individual for fear of dropping the ball on the soft skill.

Moreover, the game theory of the soft skill is treacherous and uncertain. There's too many unknown unknowns, it's like not knowing if the dice you're playing is loaded against you. You don't know how many cultural land mines you might step on when interacting with your superior, or if there's a glass ceiling enforced by a group who will nitpick on minor irrelevant 'faults'.

Whereas compare soft skills to hard skills, you have a major advantage in certainty. There is a dice loaded in your favor. You know you can get much of the stuff done, and once you've reached the desired results, that's all there is to it.

I also could go on on how soft skills erodes human's capacity for judging what is value, instead basing their opinions on the majority source of opinions... It'll definitely be a much more irrational world to live in.