Literally never seen Goku tricking anyone, there are a few instances in which he plays with the enemies but they were the baddies.
not true
The original Wukong [1] flies on a "golden cloud" (does that rings a bell?) and uses as a weapon a growing stick (Ruyi Jingu Bang, transliterated in Japanese as Nyoi Bo, the name used in the Dragon ball anime and manga) that obeys to voice commands
In Dragon ball the golden headband (that can shrink as a form of punishment) is missing, replaced by a regular red headband that sometimes Goku wears
EDIT: of course I forgot the most important one: Goku can become a monkey. Wukong is a monkey, the monkey king.
[1] https://external-preview.redd.it/CZeTiWE13k8lyrdzQ5pGZqY6wI6...
Much like Goku in Dragon ball, where trough the training and by following his master's teachings, he becomes a warrior with a noble heart that values friendship over everything else.
After that, I agree, it's simply about becoming stronger and stronger.
How? How abandons his family to train or fight enemies. He puts everything at risk just for a good duel. He helps the enemy recover or throws his son out there just to see a good fight. Just because he's the MC and portrayed in a positive light...
He might be a popular character but definitely not nice.