Lebaneseproud -- never said individuals who identify and do what they do as Christians can't be great folks who do great things -- the fact remains, overwhelmingly, that the overall history of 'missionary work' remains utterly miserable and pernicious, including direct responsibility for, among other things, multiple genocides (and, of course, note that even the commendable instance you cite includes the obligatory chapel and prayer room, inherently extrinsic to the good work done there)