Of course the benefits trickle down, just look at the cost curve of something complicated like a computer.
If it wasn't for standardization and automation, the price would have never been cheap enough to be widely used.
Walmart (for example) may not be liked but they have saved the average consumer quite a lot of money on their purchases based on their efficiencies of scale and automation.
You can also argue that Walmart also encourages the disposable economy, and I agree.
In my opinion, problems in the poorest areas of the US inner city are a direct result of no incentive to get a(n) (better) education, a (better) job, etc... when housing is subsidized, food is subsidized, Internet and phone is subsidized, etc... Vote for the people who will keep the gravy train rolling, and in turn they will give you just enough stuff not to starve.