You're still not accounting for greed and basic capitalism. Something has to force failing ideas and products down. If they are already monopolized and without any forseeable competition, it will not matter. I doubt a group of shareholders are just going to say, "yea, alright, were making more so lets drop our prices." This was the theory behind trickle-down economics.
Now, however, perhaps I'm not taking into consideration a complete new way of doing things OR the effect it may have on many other not yet existing industries and services. BUT, that doesn't stand in the face of things like power, water, internet, fuels etc.
I just watched a video about how pharmaceuticals purposefully create so much waste (two examples were: making eye drops bigger than what the human eye can hold and cancer drugs being changed to single-use vials instead of multi-use, so the vast majority of patients are only using like half the vial per dose, and the rest gets tossed, but they are charged for the whole vial). All of this is imaginary cost. A micro drop was tested and studied but the pharma company who paid for the study won't use it because they'd lose half their possible income. The cancer drugs USED to come in multi dose vials. Etc.
The total coat of all this medical waste cost more than the US military's budget. Hundreds of trillions of dollars. For nothing.
Pass laws that prohibit such practices, and that seriously drives down the cost of healthcare.
That may sound rather statist, but, if we accept that statism is dying and labor for dollars for survival is dying, any steps we are taking now, such as anti-waste laws and UBIs are REALLY just transitional measures. As tech really takes over so many industries, the pace of which is growing exponentially, eventually the model itself is going to die: capitalism. And I don't think its replacement idea even exists yet, because it's so pervasive right now. But when everyone has food farmed by robots (already happens!) and advanced 3D printers and internet and solar and all of these other difficult-to-monetize services? Why do we imagine the social structure would be at all the same?