* Tesla has tremendously accelerated electric car deployments. I am going to count Solar City in this bucket as well. It was not a smashing success as Tesla or SpaceX are, but it helped to accelerate solar deployments.
* SpaceX proven out booster re-usability and lowered launch prices.
* Helped start open AI which is pushing limits of building machine intelligence by tackling progressively harder problems.
Whatever you think about the man, you can't ever take away those accomplishments. All of the current controversy looks so small and insignificant compared to them.