Right now, I'm seeing Beyond and Impossible substitutes at burger restaurants, and it always comes with a couple of dollars surcharge, because it is more expensive. Imagine the day when the meat patty comes with a surcharge, because the substitute is cheaper!
I am always soapboxing about this, but the only way we can meaningfully address environmental or ethical concerns, is by doing it through the economy. The "best" choice has to also be the cheapest choice, because then people will as if by magic choose that most of the time, unlike when you only have people's conscience to motivate them, then the wallet still rules most of the time.