Hot take - all these articles (telling employees how to be) are crap for one simple reason:

If the management chain wants X, they need to incentivize X. In my experience 9/10 times, then management chain claims they value some set of values abstractly - but what they really mean is "Make me more money, and don't upset the order of things. There is no skill you can have in any quality that will ever make me think you should have my job or better."

If the management chain values kindness, let them communicate that request, then prove it by promoting people on that trait rather than nepotism/beauty/years/profitability/whatever.