I don't have a cite, but I saw a graph in the WSJ decades ago that laid "productivity" and "total worker compensation" on the same graph, and they neatly overlaid each other.
In any case, neglecting the value of employee benefits makes comparing salary to productivity a completely worthless statistic. What needs to be included are the values of:
You'll know what you're reading is propaganda if they're comparing salary increases to productivity increases.
Don't overlook that the primary customer of the WSJ is not conservatives, but businessmen who are looking for accurate business information that will help them make money. If the WSJ just delivered pro-business propaganda, that would not serve their customers' needs.
I subscribed to the NYT for a while, and finally gave it up. Their business news was all propaganda, and of little use for things like picking a good company to buy stock in.