And he'd ask why the hell you're paying for a taxi for your burger.

I think a rural farmer from 1925 can understand "I pay an immigrant to deliver me hot food via an exploitative middleman", if he's Indian maybe his cousin that went to the city is a dabbawalla.

Like you can do your hypothetical right now with a plane ticket and a 4x4 trip to the Colombian Andes. The peasant might call you a softie, but he's not gonna become Steve Pinker and tell you everything is A-OK.

unfortunately he can only pay you back in 1925 dollars so youll have to take the dime as down payment and get the farmer enrolled in a BNPL

The 01925 dime is worth about US$3 as bullion (see https://news.ycombinator.com/item?id=45907742) even without getting into collectors' value, so a couple of dimes or a quarter will pay for a hamburger. You may just have to stop by a jeweler or a pawn shop first.

Yeah, he'd spit it out because it tastes like corn-fed, feed-lot crap.