Tell me again what the advantages are in the State of Oregon to having a 'minimum wage' of $10.25 per hour as opposed to the Federal $7.25 per hour?

I know that the waitress makes more; what does that other $3.00 per hour do for society itself in Oregon?  

 We are high in food stamps, (SNAP);  34th in the nation in poverty rates (700 thousand or so in that category); low in graduation rates (46th in the nation) ; unemployment is down at(5.1%).

A minimum wage person here makes $3.00 times 40 hours per week more than the same person in 22 other States according to this article.  

What are the measurable benefits between us and those other 22 States as a society?