It's not just pay. Things like pensions that would encourage long tenures have been all but eliminated from compensation packages. The idea of staying at a job for more than 3 years, especially in IT, is crazy to people. If you're there for >5 years and then look for something else, interviewers wonder if something is wrong with you.

Which is insane. Companies lose a lot of value by not having long tenured "company [wo]men" anymore. I keep waiting for some convoluted explanation that shows this situation is better in even a strictly capitalist sense, but that explanation doesn't seem to exist. The best I have is that people coming from outside organizations will cross-pollinate ideas and technologies instead of being stuck with whatever that particular company is doing. But there are other ways to handle that, and you don't have to push it on everyone.

No, companies just seem to have decided this is how they're going to operate.

He is making the job worse for his team not his corporation. That's not the way to deal with that.

It's a balance, but too many people don't even flag it to management because they're lazy and they write shit and ship it to get it off their own plate.

Now, if management says ship it anyway it's a balance of you as a developer making sure they understand they're throwing this technical debt on the credit card and it may (probably) need to be paid off later. If you fail to articulate the interest that'll be due later then you didn't do enough or management is bad.

You shouldt work unpaid to fix it, but sometimes you should just do it right even if it takes longer because it's how it should be done.