alt Hacker News> the landing page will have great importance.
Most companies don't need this. They need a page that has their contact info and some general information about services they provide so they can have a bare minimum internet presence and show up on google maps.
Absolutely, if your company doesn't want to make sales or if you want to be bothered all the time by people calling and mailing only for them to find out your product isn't a fit for them. Or if you want third party sellers to take over most of your business like Booking.com, AirBnB DoorDash or Amazon.
Companies who understand the importance of a customer friendly and functional web presence get a great return on their investment. And it's much better for the customer.