Earlier quoted context omitted.
Aside from Sports (where competition is the whole point outside of the Ivy League), Sparta is always portrayed as cruel and inhumane, deservedly so. On the other hand, they were, apparently, good at waging war one way or another. I've not seen it associated with philosophy and civilization as Athens was, among others.
Sparta was good at fighting, but bad at war! Spartans were known to have terrible logistics, they couldn't field an army for more than a year. Back then, most armies needed to live off the fat of the land and/or have huge supply trains to remain effective, and Spartans had neither skillset. (When talking Bronze age tactics: this was the key advantage of slingers, who could craft their sling-bullets from clay and rock…
Seems like Sparta internalized personal valor so intensely that the only collective good they could possibly understand, was to project the whole country as an imagined heroic individual, and then try to individually triumph in the name of that country.
Meanwhile, there's a lot of countries out there with more of an interest in community spirit and collective action. I daresay there's good metaphors for leaning too far in that way, as well, but Sparta did get wrecked in the end by the collectivists, who quite simply out-organized them and provided better support for their soldiers.
If honor dictates you have to jump over the ten foot wall ALONE, you ain't doing it, and humbler people who build a human pyramid and lift up those not good at climbing… their whole army's gonna be on the other side of that wall, anytime they want.