I believe that the folders that your pages are placed in are less important than the linkage of your website.
Folders are the structure used to organize files on a server.
Linkage is how a website's structure is presented to the visitor and to Google. Linkage includes your persistent navigation, breadcrumbs, and the in-content links that you are publishing to visitors. It can also include link inputs from other websites. This is the structure that Google uses to discover how linkjuice and visitors flow through your website. Then they will use that information to decide which pages and parts of your website are really important.
Files in the same folder can have dramatic differences in importance on the basis of linkvalue, visitor useage, and traffic entry. They can also have very different power inputs produced by links into them from other websites. Files deep in folder structures can have higher PA than your homepage, files deep in your folder structure of your website can get more traffic than your homepage.
It is not unusual for a website to have third-level (and deeper) pages that get 10x as much traffic as the homepage. These are pages that have gained visibility in high volume SERPs or have gained visibility across an enormous number of queries.
Its possible that 90% of visitors never see the homepage. Instead they land on a deep page and are routed through the site by effective navigation, breadcrumbs, on-site search and in-content links.
Wikipedia is an example of a website where folder structure is meaningless and enormous traffic and linkvalue flows through in-content links. Amazon is a site where folder structure is meaningless and enormous traffic and linkvalue flows through dynamic persistent navigation, dynamic breadcrumbs, product recommendations and powerful on-site search.
Consider how your site can best serve the visitor. Decide how you can modify that to make the site best-serve your business goals. There is where you should spend significant thought and time.