I don't think you've understood how wealth distribution works in reality. Glancing through this, I find:
Dollar millionaires make up 0.7% of the adult population but hold 46% of global wealth
You see, game makers have realized "Wait, why should we limit ourselves to only half the amount of money available? Let's make a system where one person can pay more than everyone else combined!"

If dolphins were the main interest, don't you think the game would be far better off selling... I dunno, Hime directly? 50 bucks per specific SSR Hime, buy as many as you want (instead of one per 4 months)! 10 bucks per specific SR. Can't afford it? Jewel random gacha is still there!

The amount of dolphins would skyrocket, don't you think? But, that'd mean capping the amount of money that Nutaku/DMM could make from whales. To a mere... uh, I dunno how much it is, 50*50 + 50*10 bucks or something like that. I can't be bothered to count the current count. Anyway, despite getting hundreds of new dolphins (maybe even thousands out of the ~8k Nutaku playerbase), it just isn't worth it to lose the whales.
Quote Originally Posted by King_Electronics View Post
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I don't care anymore, the point is, do you want that 15x rate up or not? --
Of course we want that. That's basically a requirement to keep the game going. Even whales value their time to SOME extent, and the amount of pulls that they need to do keeps increasing more and more with the release of every SSR Hime.

But this is this and that is that. Just because this is a thread about the 15x Rate Up, doesn't mean that we can't talk about other things.