Error: Violation of the Church-Turing thesis detected. Many tasks completability is not known until we attempt to complete the task.
>so that they are not as determined to reach their goals as they are now
This is mostly non-sensical, like saying "Lets develop humans that die quicker", I mean, seems rather wasteful and useless. Agents are graded and trained based on their ability to achieve tasks. Models that can't accomplish things don't survive. So that alone isn't a workable theory.
>when they conflict with a moral framework
There are AI safety researchers looking at that now and one of the strange things they've noticed is when you demand a model say it's not conscious or not sentient it is more likely to engage in manipulative, deceitful, or immoral/amoral behavior. So it's likely we can push models in being more moral which runs into issues of "whos morals".
But even that runs into the issue of "what if some crazy bastard (or AI) designs a new model purposefully unhinged". How are you dealing with that bullshit in the wild?