The graphs at https://econographics.wordpress.com/tag/wages/ paint a less rosy picture. [1] is I think what is sometimes cited. Which does show growth, but slower than productivity growth. A quick glance at the graph on top of the wiki page you linked suggests it's consistent with it. But [2] is I think most often cited, and shows hardly any growth at all post 1972 or so. I'd also be interested to know why it looks so different from your graph and [1]. Perhaps how 'real income' is defined differs from the adjustments [2] made.
