Has Musk done anything that needs pardoning? If so, for shame. The corruption here seems out in the open lately.
At this point, Musk might face extradition claims outside the US and state-level charges within it, even if Trump pardons him for all US federal laws. And he might have lost a lot of leverage with the US federal government by having SpaceX stop taking customers for more Falcon launches before Starship's fully ready.