There is no need to compare them. This is the culture in which Aikido has been nurtured. When we recognize that Japanese culture is different from American culture in this way, we may understand more about Aikido and its principles. We may understand what it means to harmonize, to be heavy and light, to unite mind and body, to connect your center to your partner's center. In the Japanese cultural framework, heaviness exists within lightness.
Strength comes from softness.
Body and mind are not separable. Left and right hands move in unison. There is goodness within a villain and evil within most of us. You and I exist inseparably within the universe, therefore, we are already in harmony as we are. There is no need for compromise or confrontation.