For example, Amazon is drastically larger than 3M. Four times the market cap, four times the sales. Not to mention 3M's business has been contracting for years, meanwhile Amazon is full speed ahead. So that gap will grow dramatically in just a few years. Amazon will hit $200 billion in sales in a few years, while 3M will have seen zero growth (Amazon will be 7x larger then).
Your comparison doesn't make much sense today. It'll make zero sense tomorrow. Samsung is the sole company in that group that will be comparable in just three or four more years.
Your example is just 3M and is easy picking compared to any other example you could've chosen.
Was curious, so I looked it up. Mitsubishi's revenue (as of 2011, which is where Wikipedia cuts off) was ~ $174B. Amazon's 2016 revenue was about $136B. I'm guessing Amazon has a higher revenue growth rate than Mitsubishi.
Samsung's total 2014 revenue was $305B. LG's 2012 revenue was $143B. SK's 2011 revenue was $99B. SMFG's 2011 revenue was ~28B. Toyota is the largest company in Japan at about $237B in revenue (not a keiretsu, but included for scale).
TL;DR; it's not easy to find a company (or related group) with revenue that dwarfs Amazon's. Amazon is really big.