After three successive top-half finishes, St Mirren manager Stephen Robinson was adamant that games such as this are ones they must win if they want another top-six place come May.
Given how the Paisley outfit gained territory in the first half and controlled the second, it's only more obvious that Robinson has the Premiership sussed.
Should St Mirren continue to take this approach, they won't be far away come the split.
With Wright's well-struck shot that was saved, Dundee really could have set the tone in the Paisley rain but afterwards they found themselves retreating and retreating to the point where they couldn't get out.
In the second period, they were largely restricted to long-range efforts and Dundee's cause was not helped by the absence of Murray in attack.
Nevertheless, Steven Pressley's side, who are seventh but could slip below Motherwell and Livingston after their weekend fixtures, have had a solid enough start to the league season after a difficult Premier Sports Cup campaign and early exit.