Nintendo, while aggressively litigious, do so to maintain the value and exclusivity of their IP.
Their games also never go on sale, and all sell really well over time, unlike many releases from other publishers.
The result is that Nintendo are able to release a solid cadence of high quality, first party games free of other forms of aggressive monetisation, maintaining the value of the games as art.
Has Nintendo been interesting in terms of art or gaming innovation in the past ten years? Apart from pokemon when I was a child, I only ever played some small party games at friends and I was never impressed by the games depth nor feeling the desire to get them at home.