D&C 123

 The Lord counseled - 

"Let no man count them as small things; for there is much which lieth in futurity, pertaining to the saints, which depends upon these things.

16 You know, brethren, that a very large ship is benefited very much by a very small helm in the time of a storm, by being kept workways with the wind and the waves.

17 Therefore, dearly beloved brethren, let us cheerfully do all things that lie in our power; and then may we stand still, with the utmost assurance, to see the salvation of God, and for his arm to be revealed."  (Doctrine and Covenants 123:15–17)

In my mind, any individual calling may seem small, but the promises are great.