Goku is ultimately a pretty good guy, someone whos very friendly and quick to trust.
Goku is like a catalyst, forcing reactions from his friends that may even surprise them.
The original Krillin would never have even considered sparing Vegeta, or trying to save Android 18.
The same is true for many other characters.
Vegeta is similarly impacted by his relationship with Goku, becoming less hostile.
Goku acts as a sounding board which other characters can reflect off of, allowing them to grow.
Dragon Ball expanded quickly, starting as a serialized manga for Weekly Shonen Jump in Japan.
It made its way overseas via manga and an anime adaptation that is enjoyed worldwide.
These mystical orbs would grant the wish of any who gathered them together.
