Interesting thought experiment. I'm sure many missionaries have encountered that situation (Jim Elliot comes to mind). One of them ended up like this guy, God rest his soul: https://www.dailymail.co.uk/femail/article-12636503/American-missionary-John-Allen-Chau-killed-tribe-documentary.html
"๐ฅ ๐ณ๐๐๐๐ ๐น๐๐ ๐๐๐๐!๐ฅ"
yup exactly imagine a high tech society arose on this planet, and in its initial form, it was highly ethical they wouldn't just colonize the rest of the population they'd send out emmisaries disguised as solitary loner weirdos who would search for the most intelligent and curious of these other cultures and teach them... with their clear permission and desire to learn any other model of sharing culture is some kind of invasion
"๐ฅ๐ฅ Happy New Year! ๐ฅ๐ฅ"
"๐ฏ๐๐๐๐ ๐ต๐๐ ๐๐๐๐!๐พ"
"๐๐ช๐น๐น๐ ๐๐ฎ๐ ๐จ๐ฎ๐ช๐ป!"
"โ๐๐ก๐ก๐ช โ๐๐จ ๐๐๐๐ฃ!"
"๐ณ๐๐๐๐ ๐น๐๐ ๐๐๐๐!๐ฅ"
"๐ป๏ฝ๐๐๐พ ๐ญ๐ข๐ โฒจ๊ฌฒ๐๊ญ!"
"๐ณ๐๐๐๐ ๐น๐๐ ๐๐๐๐!"
"๐ณ๐๐๐๐ ๐น๐๐ ๐๐๐๐!๐ฅ๐พ"
"๐ฏ๐๐๐๐ ๐ต๐๐ ๐๐๐๐!๐พ"
"๐ฅ๐ฅ Happy New Year! ๐ฅ๐ฅ"
"๐ป๏ฝ๐๐๐พ ๐ญ๐ข๐ โฒจ๊ฌฒ๐๊ญ!"
"๐ณ๐๐๐๐ ๐น๐๐ ๐๐๐๐!"
"๐ฏ๐๐๐๐ ๐ต๐๐ ๐๐๐๐!๐พ"