Like everything in the gospel message, the world only sees foolishness. If the Holy Spirit isn't working in your life, you aren't going to get it. The world. and conventional wisdom, value ambition, self-reliance, pride, greed, selfishness, etc, all as evidence of how they control their own lives. They think they should go out and take what they want, and invent themselves, and run their own lives, according to worldly definitions of success. The kindness, gentleness and humility modeled by Christ will lead us to seek God's will, and to put others before ourselves.
Humility is important to Christlikeness because Christ calls us to submit to doing God's will, not our own. After loving God before all others, we are called to love others as we love ourselves, to love each other as Christ loves us, and to serve each other and the people of the world who need it most. We can not love and serve in these ways by ourselves. We need God to point the way, and the Holy Spirit to give us the power and ability to do all these things.