I believe it is possible that, our understanding of sanctification comes mostly from “ a shamed-based worldview in which earning and insisting upon respect from others is paramount.” As such, we view sanctification as a means and method to earn respect and bring honor to ourselves and, coincidentally, to God. Ultimately living a “sanctified life” is more about me than God.
In contrast, the kingdom life is lived with a set of values based on charity, wanting the best for others.
This can be illustrated by the following excerpt from Keller:
Imagine seeing a little old lady coming down the street at night carrying a big purse. Why not just knock her over and take the pure and its money? The answer of the honor-shame culture is that you do not take her purse, because if you pick on the weak you would be a despicable person. No one would respect you and you would not respect yourself. That ethic, of course, is self-regarding. You are focused on how the action will affect your honor and reputation. There is, however, another train of thought to take. You may imagine how much it would hurt to be mugged, and how the loss of money might harm people who depend on her. So you don’t take the money because you want the best for her and her dependents. This is an other-regarding ethic; you are thinking completely about her.