No, it creates social mobility for everyone. One example is that it’s now respectable to be a computer nerd in many circles the US, because some of the richest and most influential people of this generation are. In Sweden: not so much. Money and power stays were it has always been.
You have a fair share of famous names in tech for a small country... You blew up Ericsson but I believe Spotify, Minecraft, Skype, Candy Crush, Flightradar are all from Sweden?
Flexibility in the economy only creates flexibility for those at the _very_ top. It creates potential instability for literally everybody else.