Masks didn't work for people needing an immediate cure, but it was never that, it always was a multiplier, and even an multiplier with only 30% efficiency would translate to 4x reduction in spread through 4 levels.

And that reduction was there to give healthcare workers a chance to not be overwhelmed as they were for a large part of the initial pandemic.

There was literally never a time where mainstream medical advice was "masks do nothing".

Conventional for whom?

The title is >Create value for others and don’t worry about the returns.

Isn't being an anti-masker the opposite of this viewpoint? Literally saying, I only care about the returns for myself, even if creates negative value for others.

It's so we can definitively identify this person as a Nazi, as persona non grata, so we can feel better about ourselves while we break quarantine and contravene public health orders to get clandestine haircuts and attend illegal cross-household parties.

    So you must be careful to do everything they tell you.
    But do not do what they do, for they do not practice
    what they preach. They tie up heavy, cumbersome loads
    and put them on other people’s shoulders, but they
    themselves are not willing to lift a finger to move
    them.

    Everything they do is done for people to see: They make
    their phylacteries wide and the tassels on their
    garments long; [...]