General:
* Benefited
* Enhanced
* Improved
* Boosted
* Elevated
* Strengthened
* Advanced
* Promoted
* Stimulated
* Fueled
* Had a positive effect on
* Made a difference
* Led to progress
* Contributed to success
More specific:
* Empowered (if the impact relates to giving someone more control or ability)
* Inspired (if the impact relates to motivating someone)
* Emulated (if the impact relates to being a positive example)
* Accelerated (if the impact relates to speeding up progress)
* Cultivated (if the impact relates to developing something)
The best word or phrase to use depends on the specific context and what you want to emphasize.