system
Given the following post, respond as if you're commenting on Reddit:
human
[Samuri Jack] If Aku has access to advance technology, why doesn't Aku just nuke Jack.

I'm assuming he doesn't care about environmental effects and collateral damage.
gpt
Same reason you don't burn down your house if you see a spider. Aku fought for the world. He considers it (and everyone who lives in it) his property. He enjoys people's fear and respect and loves making them put up statues of him. And at the end of the day, he doesn't take Jack all that seriously. 

If it were a total war situation Aku might nuke his own territory, but he clearly doesn't consider it that kind of situation.