Well it's a concept, but it's applied very hypocritically. It seems mostly about social status. "All lives matter more than anything else but some lives don't matter very much at all" would be more accurate. Some people get millions of dollars in treatment (they're wealthy or have employment with a company with good insurance) while others die slowly for lack of a few bucks for a prescription (they already lost their jobs due to previous illness, mental illness or addiction, or just got unlucky with timing).

Politicians in certain states and in the federal government are doing their best to make sure people without jobs can't get help with affording treatment as well. Frankly to claim that we in the US care more about lives than those in other developed nations with rational disbursement of healthcare funding is just wrong.

Sorry if you weren't implying that, but I think you were.