Da 1:8a But Daniel resolved not to defile himself with the royal food and wine.
Da 1:11-12a Daniel then said to the guard whom the chief official had appointed over Daniel, Hananiah, Mishael and Azariah, "Please test your servants for ten days: Give us nothing but vegetables to eat and water to drink."
This interests me too. It was Daniel alone who resolved to make a stand, but when he petitions the guard he does so on behalf of all four of them. This is Daniel displaying true leadership. Looking out not just for his own interests and making progress on his own, but looking after others and taking them along with him on his journey of faith. True leadership is not just about what you achieve, but about what you enable others to achieve.