Earlier quoted context omitted.
"It should always be a person's #1 priority to live as long as possible." Living as well and as beneficently as possible might be higher priorities. The older folks with the desk jobs are often quite literally sacrificing their own well-being for their family's, "deprioritizing their health" for another priority. "You could not do more with your money than get professional help in steering your body" You could donate…
Virtue signaling? Your main priority should always be yourself. No one, except yourself, will look out for you.
(That said, it's wise to ensure you have yourself taken care of before helping others; else you may end up making things worse. )