ORGANIC RANKINGS is and will always be very important for the searchers and good organic rankings will always drive excellent traffic to the website.
SEO starts with proper keyword research and analysis where the focus is to choose the correct words which describes the website's products or services or any kind of information in the best possible way and hence the searcher can get to the most suitable website with convenience.
The second good thing about SEO is that it benefits the user experience on the website as well. A well optimized website for search engines will always have a meaningful content benefitting the user's experience on the website
The website will be free from technical glitches, broken links and will be quick and easy to navigate. Not only that the website will be using proper web analytics (in order to understand bounce backs and customer's behavior on the website and thereby eliminating the problems).
Along with the content, videos and images are also optimized and hence the website becomes easy to upload and access required information.
A well optimized website will adhere to proper accessibility standards and will be developed using a proper content management system.
So it is not only the owner of the website who makes money by optimizing his/her website but there are many advantages from a user point of view as well. A well optimized website enhances the users experience on the website by a large extent and hence I can assure you that SEO will stay and live forever in the World Wide Web.