I always love when characters in Street Fighter play the role of the villain but can also be good people outside of battle. Like when Dhalsim and Sagat teamed to help feed children. It instantly adds a lot more depth to their characters.

Akuma's actually a softie on the inside. There's a Street Fighter Alpha concept art of him that the devs acknowledged as canon:

Let it also be known that when the devs were in the concept stage of Akuma for Street Fighter V, this was one of the competing concept: