Sometimes it can help to continually plan and provide gentle interventions that expose the team to individual examples of what you are looking for. As long as that doesn't too severely overlap with what amounts to activities or embarrassing admissions that could torpedo a team member's career later on when you're gone. A very hard ask overall.
Probably the hardest part: If you can do it yourself, as an individual, congrats you get to feel like you could inspire people. But that's you as an individual. The group-organism experiences growth prompts as stress just like individuals do, but with far worse tools for coping. And one of the worst counter-pressures is the ever-present possibility of faking it for a bit and then just changing jobs to escape the awkward stuff, maybe getting a raise in the process.