On "Knowing Better"

One should know better than to think that people should act better because they know better.
Shunning consequentialism means that one should act better regardless of whether others follow suit.
Nevertheless, it is difficult not to be disappointed when others continue to act consequentially and oftentimes selfishly.

But this is not all bad:
Being consistently disappointed in others is the best reminder to examine one's own conduct (as the Prophet (p) said: "each human is a mirror for its sibling").
In particular, the disappointment itself is a reminder of at least some residual consequentialism (because it exposes one's implicit thinking that better conduct would beget better conduct).