Two observations about benefit. A short passage links the cosmic and the social. (1) "Whatever happens to each is DOGMAfor the interest of the Whole" (τῷ ὅλῳ συμφέρει) — "this might be sufficient" (ἤρκει τοῦτο): every event is built into the good of the Whole. The governing discipline is desire (to accept what happens as beneficial to the Whole); the sustaining one is action (the common benefit).

One man's benefit is all men's. (2) A second point, "taken broadly" (ὡς ἐπίπαν): DOGMAwhat is profitable to a man is profitable to other men too (ὅσα ἀνθρώπῳ, καὶ ἑτέροις). There is no private benefit isolated from the common: the good of a rational-social being is by nature shareable. This is a direct consequence of the DOGMAsocial nature.

The proviso about "benefit." A final methodological remark: here "profitable" (τὸ συμφέρον) is taken "in the more general sense" — of the middle things (τὰ μέσα). The term τὰ μέσα is a synonym for the indifferent: what is in itself neither good nor evil, though it may be "preferred." Marcus qualifies: the "benefit" in question is not the good proper (virtue) but an intermediate, "preferred" benefit. Strictly by the word, the term adiaphora is not present here (Marcus writes μέσα, not ἀδιάφορα), but the concept is the same.

Parallels. It continues 06-44 (what is useful to the cities is good for me); the doctrines of DOGMAunity and DOGMAthe social nature; τὰ μέσα / ἀδιάφορα — 06-32; Med. 5.22 (what benefits the swarm benefits the bee); 10.6.