Sometimes we separate things which don't need to be separated.
If we are to follow God and serve him with our lives,
and that is our real focus and desire in life,
then our education and career path are all part of our own personal, spiritual life.
If you desire to follow God,
then any education and career He leads you into is part of your spiritual life.
Not everyone should be, or needs to be, a pastor.
God has plenty of use for everyone, educated or not.
All of God's children are part of his plan, and God is concerned about each of us, and our education, and our careers, and everything else.
So, it isn't more or less spiritual to be educated or not.
It isn't more or less spiritual to have one career over another.
It's all about our hearts.