I got curious about how many trait points certain ethic and civic bonuses are worth, and as you'd expect it's not easy due to the low overlap.
So what can we say?
Materialist says that one ethic point is worth somewhere around one trait point, or even more in a diverse empire, since +10% research speed will probably work out to the same as +10% science production in planetside labs.
Conformists, Police State, and Spiritualist conspire to say that two ethic points equal a civic and a bit more than two trait points.
Pacifist says one ethic point equals a civic and a trait point.
Egalitarian has two ethic points equaling one civic and two trait points.
So far, so muddy. Let's get to one specific observation: Warrior Culture, and its +20% to army damage. Industrious puts +7.5% mineral production at being worth one trait point, and Strong costs one trait point and gives +5% mineral production and +20% army damage. A bit of math says that one third of one trait point is worth +20% army damage. One civic = 1/3 of a trait point, when the +minerals civic is worth four times as many trait points.
I mean, not final numbers are not final and all that, but Warrior Culture really needs a buff. Can you imagine if Imperial Cult was the ethics divergence civic and it gave +5% empire ethics attraction? (Actually no, it's worse than that: Conformists is considered a good buy at its current trait point cost, while Strong is ironically considered to be weak despite two thirds of its implied cost coming from the +minerals and Industrious being considered to be okay.)
So what can we say?
Materialist says that one ethic point is worth somewhere around one trait point, or even more in a diverse empire, since +10% research speed will probably work out to the same as +10% science production in planetside labs.
Conformists, Police State, and Spiritualist conspire to say that two ethic points equal a civic and a bit more than two trait points.
Pacifist says one ethic point equals a civic and a trait point.
Egalitarian has two ethic points equaling one civic and two trait points.
So far, so muddy. Let's get to one specific observation: Warrior Culture, and its +20% to army damage. Industrious puts +7.5% mineral production at being worth one trait point, and Strong costs one trait point and gives +5% mineral production and +20% army damage. A bit of math says that one third of one trait point is worth +20% army damage. One civic = 1/3 of a trait point, when the +minerals civic is worth four times as many trait points.
I mean, not final numbers are not final and all that, but Warrior Culture really needs a buff. Can you imagine if Imperial Cult was the ethics divergence civic and it gave +5% empire ethics attraction? (Actually no, it's worse than that: Conformists is considered a good buy at its current trait point cost, while Strong is ironically considered to be weak despite two thirds of its implied cost coming from the +minerals and Industrious being considered to be okay.)