In a similar vein as dirtyaura's comment, it's not a technology or tools problem. It's a people and relationships problem.
Successful businesses are built on the backs of relationships. Your product is important, your tech is somewhat important, but THE most important part of a building what many would call a "successful" business is the relationships you create.
It doesn't matter what you're trying to achieve -- convince people to buy your product, convince people to work for your company, convince VCs to give you money, convince Google to buy you -- all of these things may begin on the premise of merit, price, features, value, but they end up based on the relationships built between the people involved.
Deals are closed over drinks. People work for people they enjoy spending time with. VCs invest money in people they trust. Yes, all things in life have exceptions, but the longer you stay in business, the more you realize that businesses are run by people -- they are not opaque fact-driven entities -- and people are social creatures. The actual reason that people in San Francisco still cling to an age-old culture of doing business together in person instead of over Slack is because humans enjoy spending physical time around other humans. Maybe it's communication bandwidth, maybe it's something else, but until VR replaces physical intimacy, there is no perfect substitute.
If you want to succeed outside of San Francisco, begin building the relationships you need to do so. People can claim that Slack, Hangouts, and the phone match the effectiveness of physical presence, but try switching to a permanent long-distance relationship with your significant other. Good luck.