Clearly, not all dedicated and even mature Christians possess the holy spirit to the same measure.
This is the typical Watchtower teaching that creates judgmental people who let the Ego run their life.
Ironically, I remember being counselled from the platform against praying for "an extra portion of God's Holy Spirit" to be given to a particular person or group. The reason - The Holy Spirit cannot be partitioned.
That brings us to the next point - The Holy Spirit: Either you have it or you don't.
That is just like Watchtower encouraging people to work on the "fruitages of the Spirit." First, its singular (fruitage). That is to say, if you have the Holy Spirit you display all the qualities outlined in Galatians. Second, you cannot make yourself have those qualities.
Great post Snugglebunny. Yet another proof of just how off kilter Watchtower is.