You're stating the overall position of most western public health policy, and the outcome of that thinking hasn't been good.
Manipulating stated goals from real goals and influencing behavior via nudges rather than argument can be effective for small outcomes, but as a whole the practice is antidemocratic. More practically, if the approach is repeated, you begin to poison the well - people learn to work the system they're in, and any kind of split between stated goal and actual goal gives wiggle room to work an angle.
Consider the failures of mask mandates after initial anti mask messaging from the CDC. The CDC's initial goal was to tactically protect the n95 supply for maybe two months.
Manipulating stated goals from real goals and influencing behavior via nudges rather than argument can be effective for small outcomes, but as a whole the practice is antidemocratic. More practically, if the approach is repeated, you begin to poison the well - people learn to work the system they're in, and any kind of split between stated goal and actual goal gives wiggle room to work an angle.
Consider the failures of mask mandates after initial anti mask messaging from the CDC. The CDC's initial goal was to tactically protect the n95 supply for maybe two months.