Being charitable

We all want to do something worthwhile. Some of us aspire to do it for a living. I want to do something I truly care about, not just do work for existence, such as being in a charitable organisation's workforce but it seems to me that one should practice what one believes. People working for the good of others, should be generous, kind and charitable. Charitable in a sense that you don't choose the recipients of your charity, regardless of how undeserving they may appear to be. If people cannot be charitable to those around them, should they still be part of organisations whose goal is to help others?