> where even the cheapest and most proven drugs are exorbitantly expensive?

New, on-patent drugs are expensive.

Most proven, older drugs are actually pretty cheap.

The most commonly prescribed drugs in America like atorvastatin, lisinopril, and levothyroxine are all less than $10 without insurance at your local Walmart or Walgreens.

A lot of people are shocked to learn that most SSRIs and common (unscheduled) psych meds can be had for as little as $4/month cash pay at Walmart. Even insulin (excluding newest patented analogs) is $25/vial cash pay at Walmart. They’re starting to introduce cheap analogs, too, as patents run out.

And that’s my point: All of these medications were once extremely expensive, and now they’re cheap. Being expensive at launch doesn’t mean expensive forever.

Ok, let's assume we are and always will be in a capitalist hellscape where the only thing that matters is what rich people want. Even in that case, if effective longevity treatments are discovered, they'll still be made widely available because it would be hugely profitable. Obviously the sellers of the treatments would make a fortune, also insurance companies would benefit from reduced medical expenses and corporations would benefit from employees getting chronic diseases less often.