The old saying: "_If you want anything go to a busy man_," applies to them in this regard.

The busier men are the more time they seem to have for _kindliness_.
Another word for consideration is service.

Nothing brings a greater self-reward than a service done in an hour of need, or a favor granted during a day's grind.

The generous man who climbs to the top of the ladder helps many others on their way.

The more he does for someone else the more he does for _himself_.