You're undermining the fact that to build services of that scale is not trivial at all, and the fact they have managed to do it is the basis of why they are an effective competition to SV, now that they are as economically strong as the Bay Area is.
Once they are done with "replicating" SV, they'd start "inventing" too. What's stopping them from that?
Once they are done with "replicating" SV, they'd start "inventing" too. What's stopping them from that?