I think yes if they seen bitcoin will be still alive in the future and more stores are using bitcoin as payment.
For now we are still adopting bitcoin for future.
Amazon and other giants companies like that has no option in the near future to accept bitcoins. If they do not accept it, the small shopkeepers can take over their sales by introducing bitcoins in their business.
True that , if one of the big Ecommerce companies , like Flipkart or Ebay or even shopclues starts accepting Bitcoin , it will force others to accept it too because of the competition , it won't be that far , we will get to see it by next couple of years . It is a good thing both for company and BTC.