I think there were two real nerfs.

The first was the adjustment to minimum level required to sell your company, which made it near impossible for people in the lower ranks to progress. This one was fixed, I believe, by raising the cap where this adjustment took effect.

The second was the lowered ruby payout for placement in tournaments. Even could I place at the top (which I absolutely cannot, and I'm upgrading my chairs to 50 right now), I would receive less than I did pre-patch. I didn't jot down the numbers, but I feel that I'm getting more keys instead, which COULD translate to the same amount of rubies, depending on luck. I'm guessing the idea is that more keys translate to more scrap for chairs, which could be good if you haven't been playing since the start. I don't know, first thing I did was convert 6M scrap.