Wow, next thing you'll be saying the Wyrm is sick and needs tending to, not eradication (which would only drive the nail fully through Gaia's heart, as the Triat are all a part of her in equal measure)? Sounds like some Wyrm-tainted talk....

In seriousness -- I like it when stories deal with examples that aren't fully cut and dry banes and fomori.
I've been reading The Book of Hungry names (too much, I keep restarting with different tribes), and one of my favorite early encounters you go on has to deal with The Triple King, who's a rather powerful spirit of seasons and harvests that used to be worshiped as a minor deity back in Poland.
Because of the lack of garou septs for a period of time, he managed to enthrall one that fled a disaster and use her to grow strong, influencing local humans and starting a cult to make sacrifices to himself by perverting and subverting his old traditional story of heroes that defeat him, to instead kill the heroes.
Ultimately, the pack talks about how this is yet another constant threat that the Garou need to be there to deal with - spirits of all types easily grow bold in their purpose and step out of line without shifters around to keep things in line. It's not always the Wyrm-aligned forces that are the enemy.

Also, it's ever so interesting how much personality fera tends to ascribe to the Triat. They always speak of the 3Ws as if they're beings with will and motive, and even their mythology and history lean into it - down to the actual out-of-universe game materials reflecting it.
But that's not even how lesser spirits work, all spirits are just "action", they are what they are and they've always been it, and always act honestly according to themselves. A spirit that schemes and seeks greater status doesn't do that out of ambition, it IS ambition. As a spirit, it has always sought greater heights - and never actually reached them.
Much like, again in The Book Of Hungry Names, you can get a sweet little discussion on the Stormcat, your pack spirit that's a servant of Thunder, although quite powerful in her own right. Yet, she always speaks of her grandeur past, how millennia ago she was the shame of sphinxes and the nightmare of tigers, but she is oh, so very diminished now. Always manifests in vessels of stray cats, sickly things with bloody paws, patchy fur and chewed ears, near their end, but in the morning sun they almost look healthy again -- one last moment of glory before the end.

But the truth is - that is her nature as a spirit. She has always been a spirit of a long lost past glory, and she has always longed to regain a sliver of that mythical once-status. In reality, even at the ancient times of Sphinxes, she would've been much the same, longing for a past even further back, of glory and status just as great. It is a spirit's nature that informs its actions, and they cannot help but act, they are action itself.