"it can't be done any other way" strikes me as pretty thin. Whereas we may not be able to conceive of another way at this point in time, it does no good to imagine that this condition will continue in perpetuity.
imo personal responsibility and lifestyle adjustments are just the kind of grassroots behavior that could lead humanity out of this. why wait for the industrial/capital machine to see the light and change course?
this approach, however, would have to be widely adopted and it may take generations. it's not a quick fix but i suspect it would be longer lasting, being built on a societal foundation of healty eco-habits.
Depends on your perspective I suppose. As I see it, starting over is a opportunity to try again, this time with all the knowledge you lacked the first time around. You may still encounter many of the pitfalls of the first iteration, but this time, you'll have the advantage of experience.
Relatively smaller problems are still problems. Rather than diminishing the significance of certain perspectives by calling them "not real", we should be acknowledging issues like this at all strata.
You could argue that if the system naturally permits this kind of behavior (insider trading), that there is something fundamentally wrong with the system itself. Judicial band-aids are effective in their own way but they don't get to the heart of the issue.