Goku was a selfish character.

[Dark Sonic]

That's not surprising. He's still a Saiyan deep down of course he'd be like that. If only he doesn't show mercy like he was as a kid the only problem would be Bulma's *** life.

 

[Kiro1]

He is the most kind person on the show tho.

 

[Rekudakune]

Western translations made him more heroic because they were worried western audiences would view him as selfish.

Its Toei not just western translations.

Even with the new Dragon ball Super
When Toei writes Goku, they turn him into Superman.
When Toriyama writes Goku, he turns him into Hercules.