It really depends on the context. Focusing only on the price a costumer pays as your main metric ignores a lot of potentially negative externalities.

One recent example in the US: a lot of small local business were suffering because the Chinese government was heavily subsidizing shipments to the US. So much so that it was cheaper in some places to get a product mailed from China than from across the street. The US started pushing back with tariffs while appealing too the universal postal union postal union. That kept the US businesses from going under while the UPU slowly went through the process of forcing china to follow their rules.

And that's ignoring pollution, all the negatives that happen for the whole population when an industry and/or small businesses collapse within a country, and other negative externalities