When I re-read the story of Samson today, it was no less tragic but I could see some of the strands of grace. A man with low impulse control, who is remarkably gifted by God's Spirit but who cannot control his ego, his temper or his sex drive ends up being weakened and humiliated, and the only glimpse of redemption comes in the form of self-destructive revenge, and yet, God uses Him in the ongoing advance of His Kingdom, and gifts him grace and power, in spite of himself. That's just like God, to love and empower and work through really flawed people.
There is a difference then between the Spirit's gifts and the Spirit's fruits. The gifts are just that...gifts, given to us as a kindness of God. The fruits though require life long growth and care. They grow out of a life of walking in the Spirit. This should still be our focus and desire, that we would grow fruit. If God has given you remarkable gift, great! Be humble, be thankful, be faithful, and walk a life that focuses on fruit and not just gift. I have met too many Christian leaders who are incredibly gifted and also jerks. The reason for this is that we celebrate gift over fruit.