I dunno... How do we know John wouldn't have wanted it? Maybe he was planning to do it for Sean or a future child... Maybe he really liked the idea of it... There is a lot to John that many of us here don't know... Actually... out of 100%, most of us here only know about 15%, including his music... so who's to say he wouldn't have wanted this?
And think about John's personality... I'm sure he doesn't look negatively on Yoko for making money... Even though to us, she's rich enough, John might be thinking otherwise... And isn't the money going to charity, or am I just losing my mind?
Anyway, John obviously loved money, and a lot of it, I might add... so why take offense?