The problem isn't that Google doesn't employ these people or invest in their activities.
It's that Google has destroyed their own search results in order to continue to expand their revenue opportunities.
If Google:
- Enabled downvoting on results, like YT videos. (Has its own spam problems, just like YT)
- Allowed you to block certain domains from your search results, like YT videos. (If they added some kind of "coordinated network detection" and down-ranked domains coordinating with ones you've blocked, that'd be pretty cool).
- Allowed you to create your own custom search engines, like "Programmable Search Engine".
That would be incredibly valuable. They already have most of the tech. They could even create a subscription service around custom search engines if they really wanted. Plenty of people would find something like that incredibly valuable.
Anyhow, buried in there is your startup idea. Remember: your startup doesn't have to generate the same revenue or profit as the incumbent on day one to be successful.