Yet in the long run we absolutely depend on change in order to adapt and survive. Therefore there has to be a rigorous way of reconciling these two principles. Without fudging ('maintenance often matters more...')
Maybe: visionaries will develop new ideas with no intention to enact them. Eventually a few will become so well-thought-out, so vivid and so blatantly superior to the incumbent alternatives that they become inevitable. That is, society cannot help but enact them.
This already seems to be happening in some areas:
e.g. moral improvements which come about via fiction, especially fantasy fiction
e.g. individual decision-making (it seems like we deliberate for a while and then actions take place automatically)
e.g. Project Hieroglyph (no idea how this is getting along but what a great idea)
...and of course all those brilliant videos on YT of engineering schemes for the future, e.g.