I don't think "lathē biosas" is a goal. I would characterize it as a strategy... Or is it a tactic? I get those two confused. It seems to me to be more of a skillful means to navigate the vicissitudes of the opinions of the hoi polloi and to assess what is important and what is not in living a pleasurable life.
The phrase is misunderstood and mistranslated as some kind of call to being a hermit or recluse, and I vehemently disagree with that.