Google doesn't usually consider such things when making their interfaces better. At least according to them. Google was asked when they rolled out Google Instant what impact it has on their ad revenues, and they said something like "it won't bankrupt us, but other than that we don't worry about it when improving thing for users".
By the way, you want an interesting example? Think of the "I'm feeling lucky" button - a search option on their frontpage which completely bypasses any ads. How much lost revenue has Google experienced because of that one small button? Yet they still keep it.
By the way, you want an interesting example? Think of the "I'm feeling lucky" button - a search option on their frontpage which completely bypasses any ads. How much lost revenue has Google experienced because of that one small button? Yet they still keep it.