But it's also true that without Musk there would currently be no prospect of significant rocket component reuse for another generation. Rocket launch costs would be double or triple what they currently are. It also seems very likely now that within my lifetime we will see launch costs to orbit close to 100th what they were just a few years ago. Some of us think that's a good thing.
A graph of the improvement in rocket technology from 1945 to now would look like a hockey stick early on, levelling off more or less flat for the last 40 years. Musk has bent that curve back up into a hockey stick shape again.