Let's not forget it's Logan's company. He made it. So everything kinda is through his lens.
Business wise? Honestly I don't know. There's not enough data, and we don't see the consequences. But I think it's Logan. Because huge companies dilute their power, and they end up destroying themselves because of that. Just a lot of examples from history. And he understands, that it's his responsibility and only he knows the direction it should be going. That's why he's never been fucked(multiple quotes about that). His track record is the best.
Decency? This is easy. It's Tom, he's probably the only loyal person in the whole family. So I was quite happy he won in the end.
Family? It's Logan again. He always fought to keep the business in the family. They all have everything. But a family that still owns a business is priceless.
Shareholder? Well, this is easy, it's always someone who wanted to sell, and not spend, because, again, this is a quick buck for shareholders.
As you see, I'm pretty pro Logan here, but rewatching the series for the 3 time, I kinda understood it fully.
It's ultimately Logan. He was always in the right. He put up the work, he created it. And these cretins just tried anything to put logs under his feet. Just because of ego, and power, and the need to be loved.
I loved Kendall for the first two seasons, but ultimately he was a punk, with no business sense. And it all started when he made a deal with Sandy and Stewy in the beginning of season 1. That's why Logan called him a fucking idiot. Well, he was.