PSN still makes more money than the entirety of Nintendo Co., Ltd.

[Olivernintentoal]

I think you may be forgetting that Sony's Game & Network Services Division has essentially been their only profitable one for years. Sony has only recently become profitable, and it is much harder for them to make huge net income numbers than it is for Nintendo. While Sony's PlayStation has often propped up the finances of the entire corporation, Nintendo's success with the Switch is the majority of their revenue (at least going forward).