The top obstacle to Bitcoin being mainstream is mass adoption. Bitcoin now is mainly purchased off an exchange.
If there was an option to use bitcoin as a currency for paying salaries, and calculating how many bitcoins is worth an hour's job. This would increase circulation.
As long as BTC is pegged on Fiat currencies, it will keep being used as a speculative tool.
for employee salaries every hour I think this is impossible, bitcoin is not fiat that has a real physical form, but if bitcoin can be used as a reasonable shopping tool and can increase the price of bitcoin, bitcoin cannot be pegged to fiat prices, because bitcoin does not price rules of all countries