Japan, although both of these are taken to the opposite extreme.

Japan (only 80% serious here)

Go to the countryside and be amazed. Exactly why people litter to that extend 20km from civilization escapes me.

But yeah, most people just bring their trash home.

For those interested, Visas are really easy to obtain as long as someone is willing to hire you.

How is the work culture in Japan these days? Is it possible to find a company that doesn't have their peculiar (read "awful") work culture?

If they’re willing to hire you when you’re overseas they are generally reasonable. Or trying to exploit cheap labor, but then it’ll be abundantly clear and you can just say no.