Some of the effects of removing competition from business are easily visible in today's business world. Take for example cable TV in most major markets in the United States. Because of the way telecoms were broken up, most markets were left with just a couple major players so now it is impossible to compete since they own the distribution systems. Thanks to this lack of competition, prices are sky high and profits for these corporations are the same while consumers end up getting the short end of the stick.
Similar things could be said for arenas that lack competition in sports or in education.
Given these realities, it might be interesting to ask Vonnegut about whether the forces he was concerned about in terms of removing competition (civil rights, communism, etc.) were as troublesome as our own vision of capitalism that has led to the lack of competition in some areas and crony capitalism in others. The obvious dangers of attempts to "equalize" people in the story make it clear that Vonnegut felt that there would always be innate and systemic differences between people and their situations but did he feel that some basic level of support should be available to all people?