Doing miracles/healing etc is not always evidence of God's approval, or even basic maturity.
"Not everyone who says to Me, 'Lord, Lord,' will enter the kingdom of heaven, but he who does the will of My Father who is in heaven will enter. "Many will say to Me on that day, 'Lord, Lord, did we not prophesy in Your name, and in Your name cast out demons, and in Your name perform many miracles?' "And then I will declare to them, 'I never knew you; DEPART FROM ME, YOU WHO PRACTICE LAWLESSNESS.'
Stewardship is a little understood facet of the kingdom of God in my opinion. There are things we can do in Jesus name because of faith- yet walking in great mixture/chaos/carnality.
The Corinthians came behind in no gift according to Paul, yet they were carnal, babes in Christ.
Peter did miracles and I assume Judas did as well, because of the authority Jesus gave them via a rhema command. Yet Jesus said to Peter....Get behind me Satan, and we all kno of Judas' infamy.
Also, I believe as Aleax said, "Who has perfect theology?" God looks n the heart. I did not notice any greater dimension of God's love towards me after I became convinced of UR. He always loved me, and I saw healings and deliverance in my service to the Lord long before- even at a time when I was very legalistic and short sighted in my understanding of the gospel.
So, only Jesus can "try the reins and the hearts". He knows-not I. But I do know that the "Lord worked with them, confirming the Word with signs and wonders". Even so, the proclamation of the glorious gospel of God is more important than miracles. Even as the disciples did miracles in Jesus name, He rebuked them, saying,"Don't you kno what spirit you are of?" We have been called into the ministry of reconciliation, and entrusted with the Word of reconciliation in accordance the high call of God in Christ, and His kind intention which He purposed in Himself, who causes all things to work in accord with the counsel of His will.
If there arises among you a prophet, or a dreamer of dreams, and gives you a sign or a wonder, And the sign or the wonder comes to pass, and then he says unto you, Let us follow other gods, which you have not known, and let us serve them; You shall not follow the words of that prophet, or that dreamer of dreams: for the LORD your God is testing you, to know whether you love the LORD your God with all your heart and with all your soul.