Mohammad wasn't compelled by societal norms or coerced for political reasons to have sex with 9 year old Aisha, he actively chose to.

He didn't need to follow societal norms, as he in fact abolished some societal norms like alcohol.

He didn't need to have sex with her at 9 to strengthen political alliances with Abu bakr (his close friend), he already married her at 6.

This man had temples destroyed, peoples worship idols destroyed, he had mens hands and feet cut off , and their eyes branded with hot irons.

As a 52 year old man, it wasn't necessary even to penetrate her at 9 to fulfill gods wish sent to Mohammad as a dream, which was just for marriage to Aisha.

He chose to have sex with a 9 year old, just as he chose to own sex slaves.