Is being a mom enough?

So, I watched this clip on mommyblog.net and I think it's interesting enough to bring up here. Is it okay to "just" be a mom? I don't think you can JUST be a mom. Being a mom is a job in itself, and women should be happy if they are stay-at-home moms. However, these days, it seems that when women are "just" moms they aren't respected nearly as much as moms who also have jobs. So, the question is: Is being a mommy enough?