The advice is half right, and the half that is wrong is the part that gets people in trouble. Taken apart, “link to your money pages from everywhere” contains a sound instinct wrapped around a harmful overstatement, and the verdict depends on which half you actually follow.
The half that holds is deliberate concentration. Your money pages, the ones that convert, are usually the pages you most want to rank, so it makes sense to route internal authority toward them. Linking to a key money page from your genuinely relevant content (the blog posts, guides, and related pages where that link belongs in context) is a sound way to signal the page’s importance and pass it real, relevant authority. That is the defensible core of the advice.
The half that harms is “from everywhere,” read as a literal instruction. Forcing a money-page link onto every page of the site regardless of relevance, especially through sitewide footers or templates with identical anchor text, turns a sensible concentration into an indiscriminate pattern. It spreads the link’s value thin across hundreds of irrelevant placements, makes the anchor text look manipulated, and reads as a ranking ploy rather than a genuine recommendation. The same advice that helps when applied with judgment backfires when applied literally.
So the verdict: concentrate links to money pages, yes; stamp them everywhere, no. The distinction is relevance. A money-page link earns its keep wherever the surrounding content gives a reader a genuine reason to follow it, and loses its keep wherever it is bolted on purely to hit “everywhere.”
Audit your own money-page links and sort them by that test. The ones sitting inside relevant content are the deliberate concentration the advice got right. The ones stamped sitewide with no contextual reason are the indiscriminate repetition the advice got wrong, and a money page gains more from a handful of relevant links than from appearing on every page of the site.