I definitely think the Idea has merit. Another option might be to use a power point system, similar to what we use here in Arizona for High School Football.
An example of how it would work in the League would be you get 20 points per team win, plus 5 points for the number of team wins the teams on your schedule have each week, which also rewards strength of schedule. I know I am over complicating things now
I do agree team wins should be rewarded in some fashion though.