Feels like soft skills are peddled as if developers don't have "enough" and it is a common assumption by nearly everyone that this is the case. I think of it in a similar way: the magnitude of soft skills you put on display is positively correlated to the difficulty of social interactions at that workplace. Navigating all the nuances, implies how complicated and maybe loaded that environment is. Do one "mistake" regarding social skills and you will face "consequences"?