you have a point, but actually we should. not so much build your own phone but at least understand how it, and anything else is produced, where the materials come from, the environmental and other damage the production causes, how the profit is distributed (how much are those miners earning?) etc.

for food those are actually more well known, and we are starting to care about that more, but the demand for eggs from cage free hens is really not much different than a demand for better working conditions for factory workers, or for environmental friendly production processes