It's easy to build a web app with local database and local application server. However scaling that to your team, or your entire organisation, is more of a challenge. Think about it:
With SAS you get all of this out of the box. Your code runs 'on the edge' inside whichever database you are using. It is highly scalable both for big data and thousands of users. No additional accounts required.
It's the perfect choice for Enterprise.
To get started, check out https://sasjs.io