>>83059183People are flawed, commonly those who try to put forward that they're faultless are bottling up a major emotional issue or two, as is the case with Dirk and Jane. Does it make them bad people? No, it makes them mistaken but that's kind of a thing humans do, especially as their age.
Dirk especially can recognize his issues, but when it's as substantial and ingrained an issue as a problematic personality then it's understandable that it would fester. It's hard to look at oneself earnestly and say 'I want to change who I am'. That's what makes his interactions with AR so meaningful, AR is this reflection of his own flaws that he could quite literally destroy very easily given the chance, yet AR itself is just as afraid as Dirk is with his own shortcomings and doesn't want to die, he wants to move past his issues but neither of them know how.
The obvious answer is with the help and support of family, which is what he gains in the end.
Jane on the other hand didn't have the time to have a meaningful response to her shortcomings. She gave off the image that she was this collected, caring individual who was always open to lend others an ear and a helping hat. Yet she pushed her own feelings and desires down to accommodate the issues of others, which is common with overly helpful people and leads to emotional outbursts, commonly using those vulnerabilities gained against those the resignation is built up from.
The problem is she got mind controlled then didn't get to really do anything or talk through her issues with anyone, Dirk did and he was all the better for it. Jake as well didn't really get any conclusive ending on his issues, hence the common opinion that Jake and Jane ended up a waste.