That's a fair point, but it's the difference between voting for what's best for you and voting for what you think is best for society. I have a feeling that most conservatives are only concerned with the former. Hopefully I'll always be the latter.
I would agree that a large degree of torries vote for their own protection of whealth and way of life. IMO this is a selfish thing to do and these people should be grateful of the wealth they have recieved. However I do think there are also many tories that just think right of centre politics and especially economics is better for the country. They may for example have more traditional ideas on what society should look like ie the family unit and wish to protect these ideas. Again Im playing devils advocate and Im not saying I agree with these people.