Unselfish Ambition?

Scripture

• Job 31, 32
  
• Galatians 5, 6
  

Observation

"The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery; idolatory and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies and the like."
Galations 5:19-21

If selfish ambition is an act of the sinful nature, does that mean that unselfish ambition is not? Is there such a thing? How do I recognise it/tell the difference?

Application
I need to consider what is driving my ambitions, and whether they are of God or not.

Prayer
God, I pray that your will would shape my ambitions, rather than my ambitions shaping your will.