How do you deal with the frustration of knowing a friend's partner is bad for them, but feeling like you can't say anything?

Would you rather travel with a ferry line that fired and replaced workers, but is now financially stable, or a ferry line that went bankrupt and has to be bailed out by taxpayers?
It's also about what peace on Earth should look like. Do you trust the current rulers of the Earth to establish what human beings should be doing to have a good time once all wars and violence have been abolished?