That said, I think competition is a good thing. The competition is a against yourself. How do YOU become a better person than you were yesterday. How do you put yourself in a position to provide a better life for yourself. I don't remember who said it -- but there is the old adage "nobody said they regretted working more" when they were on their death bed, I am sure there are those who wish they had worked harder to provide a better life for themselves and those that they are care about.
Your flaw in logic is the assumption that working harder to earn more will make you happier. Once the basic human survival needs are met, making more and having more doesn't correlate to more happiness. This is the entire basis of what MMM is all about. And if you have an understanding of what makes people happy, you would know that "providing a better life for themselves and others" has almost nothing to do with money.
i also think that going from competition to mindless accumulation was an interesting jump. I don't think they are the same at all. I am a competitive person. I love volleyball, hockey, baseball, video games, and there is no harsher critic than myself for the work that I do. I don't see how one really has anything to do with the other.
Why exactly do you feel the need to be competitive? Physically speaking, it isn't strictly needed for survival in today's world. Psychologically speaking, it's only useful for learning how to deal with success and failure, and there are other ways to learn that. So assuming you don't need to be competitive to survive, and you already know how to deal with success and failure, why do you do it?
You can use it to better yourself, but that doesn't require being competitive
with other people. You can be a faster runner, stronger athlete, etc. without ever "beating" somebody else. It is a tool people use to artificially create a need, to force themselves to do something they wouldn't otherwise. I'm not saying it's necessarily a bad thing, but it isn't necessary.
I'm not what most people think of as a "competitive" person, because I don't like team sports (for the above stated reasons). However, I am fiercely competitive with myself, and am always striving to improve my physical and mental state. I race against the clock, and it works for me.
But it can't be all bad, competition has also spawned things like the space race of the 50's/60's. So much like many things in life it is not universally bad or good but a combination of both.
Imagine what could have been accomplished if the countries had worked together instead. I'm just saying. The "Space Race" was an artificial means to get people to perform above what they thought they could do, but it didn't spawn anything. The desire was there, the technology was there, they could have gotten it done eventually with or without competition.
If you learn to put forth the effort without artificial motivations... true greatness can be achieved.