Remember that nationally, 80% of wine sold in the United States is purchased by women. At a table mixed with men and women, more women are likely to want wine and those women are as likely, or more likely, to be knowledgeable about wine as the men at the table.
Guests may defer wine-by-the-bottle choices to whoever made the reservation or to someone else who is paying the entire bill, but they will always appreciate being offered the list and are more likely to return when they are paying the bill.