The funny thing is how few people seem to have a problem concentrating power not only within the existing establishment, but within the same family. If Jeb Bush ran on the right, people should think long and hard about voting for him, even if they agreed with him and don't mind supporting an establishment candidate. We don't need the same couple of families in top positions for so long. Same goes for Clinton. There are plenty of alternatives around.
The whole Washington power establishment is entrenched with certain people. It doesn't really matter that a few of them have the same last name. Jeb Bush, Haley Barbour, Rick Perry -- it doesn't really matter. They're all captured by the same people.
I think it does matter. Its bad enough without the added problem of putting all the power into one or two families.