>>gorman+(OP)
As users, we are assured that telemetry is only for the purpose of "improving products and services", "improving user experience", etc. If one company is collecting 20x as much as another, all else being equal, one would expect that this would be reflected in the quality of the product/service/experience.
Of course, Google's service is to advertisers, first and foremost. Users generally do not pay for what they receive from Google. Perhaps Google's paying customers, advertisers, are the ones seeing the improvement in the quality of service as a direct or indirect result of telemetry.