This is why
His realism is out of this world: if you been a J.cole fan since the days he was struggling you'd understand that his current rap lines are just quotes on what he used to rap about years ago. His whole life is spelt on his raps and there's no ambiguity, the relation is 100%. Also his raps are not only about the good stuff, he blends both good and bad, defining his Impeccable honesty.
He preaches Love: His love yourz track has healed many souls and even saved people from planned suicides. In an interview he said "not verbatim" the lust for material things never ends, you keep demanding, upgrading and asking for more of what you already have, but after he learnt about love he realized material things ain't shit and sold his car and most of his chains. He rides a bicycle now and in recent pictures he's always in normal cotton shirts a pair of Jordans and dreads as compared to his previous fancy life of designer wears, chains and cool haircuts. What's important is love, "love at the top".
Hasn't fixed his grill just to inspire people who think they don't look good enough: J.cole has misarranged teeth but unlike other artists like nas who got theirs fixed, Cole uses his as an inspiration to others saying stuff like "We ain't picture perfect, but we worth the picture still, won platinum plaques and dated girls as thick as his eyebrows with that grill"
Recently he rapped about addiction on his latest album "KOD" And it has already broken records and set new ones. KOD, my favorite after 2014 FHD not only speaks about the disadvantages of Drugs but also provides wise solutions such as meditation and leaving vengeance to the Lord on all this pain we going through in the world. I personally adopted meditation long before I heard KOD through an app called "headspace" and I'd say it's really cool to keep your mind free of pain, healthy and in shape for creativity(what people seek in drugs). In an article I read recently, Cole started meditating(10-15minutes) right before 2014 FHD.
Hardwork: J.cole makes his own beats and writes all his songs and the process is on going. He's always working on something. From his replies to fans on Twitter he stated that he completed the whole KOD project in 2 weeks whiles he was on a bigger project "the fall off"
Money: if J.cole was into music for just the money, he would've been on the top 5, if not top 3 richest rapper list by now, but he said in an interview I watched on YouTube that "he doesn't have a lust for money, he just needs enough money and assurance that he can solve current and future problems with what he already has."
Humble and lowkey: he's married and even has a child and not so many people know about this, I recently heard this from a hardcore Cole fan and confirmed after my own research. Also when watching basketball he doesn't sit with the other celebrities but prefers to be in the stance with the normal supporters.
He's funny :😂 On his "note to self" song on FHD he gave shoutouts to nonexistent human beings and immediately caught himself and added "I just lied, I don't give a fuck" 😂