Physical strength is only one aspect of success. Wisdom, courage, and connections are also key.
He wisely realized he needed two people who could be good sounding boards and support, and used his one free request to get Azz and Clara.
He slowly recognized the fears inside the Many-Ears culture and why they feared changing their ways, and sought a way for them to use their hearing and allow the group to grow in new ways.
Using his connections to Amu-chan, he calls in that to secure a business venture and financial support for the Many-Ears, further helping their development into a new culture and strengthen their base.
When pushed on the matter of some being cast aside, Iruma confesses to Mephesto he doesn't want to discard anyone. He wants to bring them along on his journey as he ascends, Mephisto included.
When his actions were threatened, he defended his student and, much like a teacher at Bablys, gave an education of violence to the would-be attacker. He showed courage of conviction and a powerful desire in that moment, which pleases Mephisto and he intercedes while chastising Iruma for acting a bit too hastily.
And Henry was already sending someone to stop Azami because Fenir's actions are not sanctioned by him.
He's done a lot. It is just hard to see sometimes the forest from the trees.