Generally speaking, anything described as a “spiritual practice” will tend to alter people’s personality to the degree they put effort into it.
It’s not normal for personality to change much. People’s personality changes under relatively rare conditions: trauma, enlightenment, extreme conditioning.
Another commenter mentioned psychedelic drugs and those are definitely catalysts for personality change.
The things that have changed my personality the most are:
abuse
violence while homeless
ayahuasca ceremonies
getting the 10-series from a rolfer
By “personality” here I’m talking about emotional patterns, which become the foundation for all sorts of beliefs, tastes, tendencies, social roles.
By emotional patterns I mean the overall averages of joy, sadness, fear, openness, guilt, etc, both over time and also in their typical daily cycles.
What makes you think that the bad actions of bad actors are going to cause our society to no longer survive? Bad actors have always existed, and yet we survive.
I disagree with the implication that anything you mentioned represents an existential threat.
Get all the people you want to have universal health care, to want universal health care. If you want it for them, sell it to them.
The only thing ever stopping any policy from existing is vote counts. Convince others that universal healthcare is in their best interests. If you’ve tried that and failed, take steps to improve your communication skill and try again.
Playing a piano can do this because the velocity of each keypress is a big part of the expression, and it’s a scalar value meaning infinite degrees of possible variation.
It’s called corruption and yes every institution eventually becomes corrupt.
The trick isn’t to give up, but to constantly renew the institutions by being present and alive and talking openly about what’s wrong, how to make it better, etc.