krishna will correct

Persons who are ambitious for deriving material benefit from devotional service are not pure devotees, but because they are engaged in devotional service they are considered fortunate. They do not know that the result of devotional service is not material benediction; but, because they engage themselves in devotional service of the Supreme Lord, ultimately they will come to the understanding that material enjoyment is not the result of engagement in His devotional service. Krishna says that such persons, engaged in His devotional service, are certainly foolish for wanting some material benefit in exchange. Such persons are foolish because, instead of achieving the stage of love of Godhead, they try to accept something which is poisonous for them. Although such persons want material benefit from Krishna, Krishna being All-powerful considers the person's position and gradually liberates him from such an ambitious life, and engages him in devotional service. And when he is actually in devotional service he forgets his past ambitions and desires for material benefits.    (More...)

In the Srimad Bhagwatam, Fifth Canto, Nineteenth Chapter [27], this is confirmed as follows: "Lord Krishna certainly fulfills the desire of His devotees who come to Him in devotional service. But He does not fulfill such desires as would again cause miseries. In spite of being materially ambitious, because they are engaged in the transcendental service of the Lord, such devotees are gradually purified of desire for material enjoyment, and come to desire the pleasure of devotional service."    (More...)

Generally people come to the association of devotees for mitigating some material wants. But the influence of a pure devotee frees a man from all material desires, and he relishes the taste of devotional service. Devotional service is so nice and pure that it purifies the devotee, and he forgets all material ambitions as he engages fully in the transcendental loving service of Krishna. A practical example is Druva Maharaj, who wanted something from Krishna, and for that reason engaged in devotional service. But when the Lord appeared as four-handed Vishnu before Druva, he said, "My dear Lord, I engaged myself in Your devotional service with great austerity and penances, and thus I am now seeing You. It is always very difficult to see You, even for the great demigods and great sages, and I am now pleased and all my desires are satisfied.    (More...)