That you presume they have any other goal in mind is frankly bizarre to me.
Through experimentation they have arrived at these algorithms to maximize the probability that you find what YOU were looking for. Based on who you are, what you've searched in the past, what context they think you're in, what's happening recently, what's happening nearby, etc.
If you want the search engines to ignore the context of the individual, then most people will get what they are looking for far, far less often than they currently do.
That's what Google and Bing are experts at optimizing.
There are search engines that don't try to optimize based on your personalized context. You and everyone else are free to use them and you don't because they're not as good at what you want. Statistically speaking. I admit there are edge cases.