Why one might ask is Content King and SEO Queen and who are the rest of the players in making a website competitive.
Think of you content as your kingdom to rule. The better you do so the better others see you and want to join in your cause. Yup, if your giving the reader what they want to see then they want to know what you are doing and how they can get what you have. They want to share it with others before anyone else. They in some way want to profit rather its being the first to know it, first to share, first to own, and so on. They want to be on the cutting edge of success.
A website is not automatically on the superhighway of success but it is a Prince or Princess in waiting as there are many facets and factors which go into the making of a Queen.
The reason SEO is Queen is not unliken a queen her duties are many, from noble yet commonwealth, she is expected to function at her best, represent the kingdom, bare children, and yet always be optimal to the people. She must be the best dressed, the best looking, the best spoken, the best learned, and show and hold the highest of standards.
As you may or may not know, I speak often of creating Unique Relevant Quality Content. Rather you are writing website content, a blog, a forum entry, or an article elsewhere, this is an extension of you and your abilities to market and capture your audience. Content writing, good content, itself is hard to find. Experience Authoritive and Trusted content that has Unique Relevant Quality is powerful, and must reach your target audience.
SEO in conclusion helps to increase visibility boosting profits. But only if the content is truly ready to lead as a King amongst Kings.