Kind of like one of the main goals of Ticketmaster is the US dollar's success? Please, it's a private company. I'm glad it exists but let's not get carried away.
Private companies exist to make profit. What Tari does for Monero is that they will spend their founds to develop open source code that could be latter on copy pasted to Monero. At least the concept since it uses different program language. That is huge and Monero needes more such projects.
Can't really copy-paste from Rust to C++, as you have acknowledged. Hence the push to migrate Monero to Rust, which I think would be a great way to alienate the existing contributor base.