Does all inclusive = Chav cruisers?

I added some news recently to our forums at cruises.co.uk about how MSC have a deal on at the moment for an all inclusive drinks package.
One of the comments made about this was that MSC were obviously lowering there standards and that there would would be lots of horror stories "of people being ejected at ports and numerous cruisers lost at sea."
On first reading it I thought it was a little harsh but on further thought it did have me thinking, when you offer something like an all inclusive drinks package does it attract the 'wrong sort' to the cruise?