That matters less than you would think. Even with tenure, you typically need research grants in order to have money for research. Research grants are typically granted based on your publishing history in high impact journals.

But again, there are good open access journals out there. And even traditional publishers typically allows open access for individual articles for an additional fee. While these fees may seem high, they will typically only constitute a small fraction of a research grant, so if you care and you plan for it in advance, there is really no excuse for not going open access.