Could you summarize your suggested best practices (Specifically what you suggest is a good way to avoid at least some of the problems you list in your last sentence.)
Really, it's more of a management problem than a coding problem. Short-term thinking, bad hiring/outsourcing practices, and poor client expectations management, among others. A framework or language isn't magic pixie dust that will make these problems go away.
At this point I'd prefer to work on a well-managed, professionally coded project written in PHP than one written using <insert-python-framework-du-jour-here> run by idiot managers.
One of the factors I considered when I switched jobs earlier this year was that the new place has a policy of devoting 2 months a year to refactoring :)
