Why does the Google Business Profile matter more than the website?
Because the map results sit above everything else and are drawn from the profile, not from your site. You can have the best website in the city and still be invisible where people look first.
When somebody searches for a service near them, Google shows a block of three map results before any ordinary web result. Those three aren't chosen from websites — they come from Business Profiles, weighted by category, proximity, and how confident Google is that the business is real and operating.
It cuts the other way too: a well-run profile can hold the top map position while the website sits on page two. That's why the two need to be worked on together rather than treated as one job, and why a profile audit is the first thing that happens here.