I don’t buy the wealth/income factor. A company prices their products and if you can’t afford it, you shouldn’t buy it. That’s a pretty universal concept.
it's very common for power tools to be sold "body only", i.e. without a battery or charger
Here is an example: https://www.homedepot.com/p/RYOBI-ONE-HP-18V-Brushless-Cordl...
Edit: GP asked for link to tool that costs similar to an iPhone that is body only, here's one priced at $2500: https://www.homedepot.com/p/Makita-18V-LXT-Lithium-Ion-Cordl...
So, I own some Makita equipment. There's a big difference in what Makita is doing and what Apple is doing. Makita sells a baseline product with no battery for the reasons you mentioned at $2500, they sell a bundle with two 5 Ah batteries and a charger for an extra $100, and you can buy batteries and a charger separately for significantly more: https://www.homedepot.com/p/Makita-18V-LXT-Lithium-Ion-High-... (This is one battery with less amp hours)
Apple lets you buy the phone and charger separately; there is no bundle.
The problem is that you can't compare the US to other countries in this way. The salaries and what people take home are drastically different. Even inside the US, if anyone bothered to look, you'd probably find that most US citizens outside of wealthy areas give something up to get the next iPhone. Adding the charger on top of that likely has impact, just less so than a place like Brazil.