Everyone's hand physiology is a little different, and partly, I think a player has to listen to what your hands tell you, as far as comfort. My fingers aren't sausages, so I tend to lean toward my finger pads more than my tips. That alone, for me, tends to kink my wrist less for some chords, but it's not good finger position for more complex chords like you're doing. I tend to steer clear of big bass chords, mostly just the 1-5-8 power chords, the 10ths with finger tips more so, and major, minor thirds, fourths on my D & G strings. So you're aiming at something more complex that probably demands more of your wrist in general.
One thing that you're probably already aware of is not applying more finger pressure than you need. I think over doing it can take more of a toll over time. -- Another thing that I've learned from classical guitar is to often not fret notes that you're not using. If you're not just doing full strums with your chords, and maybe arpeggiating, you can consider letting up a little on the notes you don't need as you play to give your tendons a break in between the notes. --- I also, like most everybody, let my thumb migrate around and behind the neck, not sticking to what I've read as being "proper" with the thumb perpendicular to the back of the neck all the time. That just doesn't work for my hand build or size. Your milage may vary.
Take the time to listen to your hands, there's a lot to be said for being relaxed when playing, and not being any more aggressive than necessary. Over playing WILL kill your hands.
Case in point: I was playing for a music video, miming to the album track, bass unamplified. We must've run the track 20 times on the first day of shoot and (it was a metal tune) I started the "performance" with a lot of physical energy for the metal vibe (leaping about, minor head bangs, exaggerating playing for the visual effect) - keeping that up had me playing really hard unplugged to hear and keep my parts in sync to the track. The next day, my wrist was shot, couldn't even pick up a quart of milk. We had another day of shoot, and fortunately, the videographer's assistant knew trigger point therapy and fixed me - (it was a minor miracle). Point being, over playing to hear some bass - spurred on by miming to the track, was a case in point for economy of movement and only playing as hard as you need to, something much easier when amplified, of course. (I don't play hard like that normally, it was all for the video theatrics only.)
Be sure you're not over doing it in general, and that will likely add to your longevity. Low action and a lighter touch might help. Otherwise, I think it's probably impossible to chord with a lot of diversity and not bend your wrist. As long as you're not hyper-extending anything too aggressively. Maybe think of your hands and fingers like your heart - it beats your whole life, non-stop - but always rests between beats