to make them walk in the right way is not incumbent on you but allah guides aright whom he pleases and whatever good thing you spend it is to your own good and you do not spend but to seek allahs pleasure and whatever good things you spend shall be paid back to you in full and you shall not be wronged.
ليس عليك هداهم ولكن الله يهدي من يشاء وما تنفقوا من خير فلأنفسكم وما تنفقون إلا ابتغاء وجه الله وما تنفقوا من خير يوف إليكم وأنتم لا تظلمون