What would sales do in a B2C shop? In my mind you just create a product people want, slap AdWords on it for revenue and add a marketing team for growth. I have a hard time imagining what for example Reddit would do with a sales team.

Edit: Apparently Reddit have a sales team since they have their own ads platform, they wouldn't need it if they used AdWords.

It's not a separate long process because there's only one decision maker. You basically need a good landing page and a working product's demo. Sometimes a client asks a question in support before a purchase but most of the purchases are without direct communication.