If someone invents a much better way (faster, easier, cheaper) to do some key part of a widely used product (operating system, database, file system, network protocol), they won't get any traction until they have built a competing product with all the bells and whistles around that technology.
That can be a formidable task to a startup founder with limited resources who has to try and compete with products that have huge budgets and decades of development behind them. Investors won't touch it until you have a completed and tested product with many customers already signed up. Customers won't touch it until it is a 'drop-in replacement' for their existing solution which requires resources to finish. Classic catch-22 or chicken-and-egg problem.
You can't just find a way to do something 10x faster and expect others to flock to it.