Actually btc have very big potential to improve country economy, online shop will be able to save more profit if they use bitcoin. Use paypal is not good for them because there are many restrictions and limitations. country which has so many people who still unbanked, bitcoin can be a good solutions for their citizens Transactions.
Each online store will get a profit if the price of bitcoin increases, bitcoin is different from fiat currency which only has a small volatility even rarely. When bitcoin has increased they can immediately exchange to money fiat, so as every online shop can buy goods using money fiat with large quantities. However, if the price of bitcoin decreases, they won't get profit from this condition, even more everyone can seek a way by exchanging money fiat against bitcoin with a little fiat money and then getting a lot of bitcoin so they can buy as many items as they want. Each merchant will thinking a long when they receive payments with bitcoin if the price of bitcoin is still volatile.
Like individuals, every single business would get equal benefit from bitcoin as well. Like in restaurants and shopping malls and every business entity if accepts bitcoin, it will likely to get huge profits.