The reality was more nuanced. The messaging was that 1) there is no evidence that masks reduce risk of getting COVID; and 2) many people who wear masks tend to risk-compensate, e.g. standing closer to others in the queue than they would have if they were not wearing a mask. They wear a mask and feel safe, so they do things that put them in danger.

So if benefits may be zero and people are risk-compensating and living a more risky life because of the false sense of security that comes with a mask, people would be worse off if they wear a mask. This was all explained in the early days of the pandemic. It wasn't some hush-hush behind the curtains plot by the ruling class.

I remember reading it somewhere, though I cannot find it now so it may not have been true, that light cigarettes tend to be more harmful than regular ones: people who smoke them tend to inhale them deeper and smoke them more frequently than they would a regular cigarette, which negates the positive effects of using a light and then some. The mask concern was similar.