I see the lack of design/quality here as somewhat organic, it reflects the values of the city (as they were several years ago when this pile was conceived, at least). It's just a bigger and more prominent representation of them. What's proposed to happen at the M/G site is an exception not the rule, driven by the vision of developers with a legacy agenda. How often does this really happen?
This latest building boom has been about speculators and investors looking to maximize profits quick in what was a grossly underdeveloped market. With certain notable exceptions this has not produced good results... and the ugly 'gravy-obssessed' attitude at City Hall only added insult to injury. They traded away all kinds of height bonuses etc. for pennies, letting developers get away with ugly cheap designs and token community benefits. Clearly this hasn't worked. Change is needed, and I rather like Torontovibe's suggestion that there needs to be more requirements with respect to quality and design.