The reputation help them to gain political power because they were very rich and also relationships with the Catholic Church which help them in politics.
Explanation:
Medici were known as "God’s banker" because their whole family was bankers and they had a strong relationship with the Catholic Church which give them fame in the society and this reputation help them to gain power in politics. They were very rich so they can also use money in politics.
The holy bible believes that God is great, the creator of everything,and that his level of understanding is beyond human comprehension. I hope this helps