You are partly right, but you seem to think it is googles job to serve you, it is not. It is googles job to make money when you click on ads, so their job is to make you click on ads.
And while you are right that some false positives may be acceptable there is a hell of a difference between accidental false positives and false positives created because of competitors actions.
You don't want to live in a world where the scummiest bastard gets to put his links ahead of they guy who is actually providing a service. We already have that situation if you google for the names of certain appliances (eg. my dishwasher) where all the results are to meta-shopping sites.
And while you are right that some false positives may be acceptable there is a hell of a difference between accidental false positives and false positives created because of competitors actions.
You don't want to live in a world where the scummiest bastard gets to put his links ahead of they guy who is actually providing a service. We already have that situation if you google for the names of certain appliances (eg. my dishwasher) where all the results are to meta-shopping sites.