I think nowadays, the social benefits haven't become well enough for us to have all these technologies such as "blue-collar robots" and so on. Because it would reduce jobs and widen the income gap. There is a article People Don't Realize How Many Jobs Will Soon Be Replaced By Software Bots on Business Insider about what Bill Gates commented that,“Software substitution, whether it's for drivers or waiters or nurses ...it's processing. ...Technology over time will reduce demand for jobs, particularly at the lower end of skill set. ...20 years from now, labor demand for lots of skill sets will be substantially lower. I don't think people have that in their mental model." It is happening that many technology based machines will replace human labors. I just think government would need to regulate the use of these technologies while the society is still not wealthy enough to have those. For instance, If every store starts to use self-pay, then there would be so many people who work in stores lose their jobs. Same as self-driving cars, there would be many taxi drivers lose their jobs if self-driving cars are been used everywhere. And when there are more and more blue-collar workers losing their jobs, there would be more and more people need government assistance. This would widen the income gap more and more.
Technology has been helping with the society in many ways. Its growing and replacing human labors can not be stopped. I think the government would need to have strict rules for the use of some technologies when the society is not ready. Otherwise it would probably brings chaos.