Domination sounds awesome, but I don't think it matches the magic system. How does sacrificing part of yourself cause domination?
The Name of a shard determines how the magic system works for the user.
So for Allomancy, none of your own power is used, so you Preserve your own power.
For Hemalurgy, you have to Ruin someone else, and the net energy from Hemalurgy is less than of Allomancy.
For Awakening, you have to Endow your own power on someone else, and for them to use it, they have to Endow that power to an object.
For Honor, you have to make certain commitments in able to connect with the power (probably).
Now for Aona, I think that having a great commitment for others or for what you are doing (or Love, or Charity, or whatever) gets you chosen by the Shaod, which allows you to give more love and service to others.
On the other hand, the Fjordell (and Skaze assumably, since the Skai are heavily involved), for the Monks to work, you have to Sacrifice yourself, or part of your power, in order to get the powers of heaven put on another man.
Domination may work for the culture, but not for the Shard.