Yes, they can and likely will both happen to some extent, but I think they aren't independent, so I feel justified in trying to nudge the public conversation back towards the issues that I think matter more.
[1] https://www.upstate.edu/whatsup/2019/0220-treatment-for-cani...
That interdependence may be beneficial, though.
Experience and revenues from cosmetic treatments will help health-restoring treatments.
I wouldn't underestimate the emotional toil of dealing with illness and death [1].
Tackling these problems head on requires (a) exposing researchers to that toil and (b) removing from the pool anyone who doesn't want to do that. Given how much of Silicon Valley culture is built on borderline-ludicrous optimism (once it's over the border it no longer qualifies as building), it makes sense that the indirect approach finds resonance here in a way the direct one does not.
Where your argument finds ample purchase is in the asymmetry of idiot luxury spending in our society to basic and applied research of any kinds, wings or Wilm's tumour.
[1] https://www.statnews.com/2016/09/19/mental-health-doctor-res...
I'd go one step further in arguing they're complementary. The personalities that will work on e.g. wings or longevity are not the types drawn to curing diseases, much less the boring ones.
Broadening the field from solving mundane problems to solving daring ones is net positive. You gain personalities that would have otherwise stayed away. (You see something similar in space programmes.)