Here I must ask you to define good fruit. Because there are plenty of Buddhists and Desists who do good works and produce what society would call "good fruit." ... However, we must properly define what is good and bad fruit.
Paul did an excellent job of explaining what the fruit of Spirit-led character looks like:
But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law. (Galatians 5:22-23)
Character produces actions. If one's life is characterized this way, then one will also bear the fruit of good doctrine, productive discipleship, and helpful leadership.
Bad fruit can be seen in the character of one who is driven by the lusts of the flesh:
Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing, and things like these, of which I forewarn you, just as I have forewarned you, that those who practice such things will not inherit the kingdom of God. (Galatians 5:19-21)
Again, character produces actions. Those who have lives characterized by any of these traits will produce all kinds of bad fruit.
If you have someone who is "moderate" who has exceptional character, you can expect to see good fruit. If you have a "conservative" whose character is marking by outbursts of anger, disputes, dissentions, factions, etc., you can expect to see a lot of destruction (aka bad fruit) following them.
What do we learn? The Christian life is much less about certain theological stances (beyond the core fundamentals), and much more about obedience to Christ and conformity to His mission and character. In the final judgment, Jesus is going to say to many 'liberal' Christians, "Enter into the joy of your master", and to many 'fundamental' Christians, "Depart from Me, I never knew you." - and vice versa.
The real question is, are you a disciple/apprentice of Jesus?