If we are ok with only winning B1G West Division Titles, then yes, Wisconsin and Iowa, etc., losing could maybe help us steal Midwestern recruits from them.
But if we want to win B1G Conf Titles and have a shot at winning Natl Titles, then we need not worry about stealing Midwestern recruits, leave those guys for Wisconsin and Iowa, we need to steal recruits from the likes of Georgia, Florida, FSU, Miami, Alabama, Missouri, Texas, UCLA, Washington, Colorado, VT, etc..
When the B1G is doing well, its easier to get those southern boys to want to come here, and once we get those southern boys, Midwestern boys outside of Minnesota will want to come here because we'll be playing great and exciting football.