I also think it's interesting the way that Menno Simons interprets the verse in his song, True Evangelical Faith. When you read through the song, you get all the way down to the end, and then it says, "We must become all things to all men." And in it, he's talking about feeding the hungry, clothing the naked, comforting the sorrowful, and the list of all these other things.
And so I think Menno Simons' maybe interpretation is right as well, that to become all things to all men is to comfort them, to put their needs in front of ours, to humble yourself, and put in the work to bring the image of Jesus to those in need.