I think that Peter k's and Kalosyni's posts are reconcilable by pointing out that "looking for the goodness and pleasure that you can experience while you are let alive" comes in many different forms. Some people have a greater tolerance to the type of society they live in than do others, but I don't think it is valid from an Epicurean point of view to say that one perspective is "wrong" and the other "correct." Peter K is focusing on the "soul-destroying" aspects of certain circumstances, while Kalosyni probably doesn't see the things that Peter K sees as "soul-destroying" as nearly so much of a problem.
I would feel sure that the ancient school had similar differences of opinion. That doesn't mean that one is wrong and the other right, as much as it means that Peter K is focusing on the survival of the school in the face of opposition as a greater pleasure to him than some others might rank it. But it's not a matter of wrong or right nearly so much as it is a matter of what we each individually value the most, and each person has to make their choices based on what they value the highest.