According to the comparison table, what was the key differentiator of the steam engine over water wheels?

Answer

Controllability independent of immediate environmental conditions.

The key differentiator was controllability; the steam engine was the first widely applicable technology that allowed humans to command a powerful force on demand, unlike water wheels subject to seasonal issues like ice or drought.

According to the comparison table, what was the key differentiator of the steam engine over water wheels?
inventionengineSocietybenefitSteam