From: https://www.artofmanliness.com/artic...first-century/

A shared honor code and the reliance on mutual respect to enforce that code can bind a community together stronger than laws, rules, and regulations. Honor forces us to think about what’s best for the group, and not necessarily what’s best for our individual needs. It also forces us to deal with one another and sort problems out ourselves, instead of relying on some third-party authority to resolve our problems for us. That social friction, while certainly uncomfortable, strengthens social ties because it requires us to engage our neighbors and actually be social with them.

Jack Donovan argues in The Way of Men:
“Part of the reason that honor is a virtue rather than merely a state of affairs is that showing concern for the respect of your peers is a show of loyalty and indication of belonging…Caring about what the men around you think of you is a show of respect, and conversely, not caring what other men think of you is a sign of disrespect. In a survival band, it is tactically advantageous to maintain a reputation for being strong, courageous and masterful as a group. A man who does not care for his own reputation makes his team look weak by association. Dishonor and disregard for honor are dangerous for a survival band or a fighting team because the appearance of weakness invites attack.”

Honor moves a man’s motivation to act from base, childlike fear of authority to a higher, mature respect, even love – love of family, love of (sic-"church"- i.e. ecclesia), love of country, even the love of honor itself. A man will not let those he loves (or himself) down by slacking off.