Greed in the form of housing policies where that is used as a tool for investment, rather than an investment in the community.
Greed in the form of a missing integration in to society and support for all who are in it to at least a basic level of guarantee. (Popular example, Star Trek utopia)
Greed in the form of profits being squeezed upward rather than shared as prosperity for all.
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If everyone had their own, quality (private, outside noises/smells/etc excluded by good design and build quality), living spaces nearer to each other that would be far better for the design of our cities and the environment.
If everyone had a useful, non-broken-window, job and place where they added value to society, that would be better for everyone.
If everyone needed to expend less and less of their day working as things got more efficient, we would have the time to actually exist as humans / intelligent emotional beings among Family, Friends, and those we don't yet know.
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I really believe that if people were treated like people, and had the time to be better people, much of our social ills would sort out sooner rather than later.