It is a good thing to favour people of your race, tribe, group etc. To be real, many or most nations favour their citizens more than foreigners; many churches help their members mostly than other church members; even a state may want to consider indigenes before others.. So what I am trying to pass is that it also good to favour people of your tribe and provide help to them where necessary, but do not do so to frustrate or deprive other tribes or people their accrued rights or privileges...
Below are wrong ways to help your tribe.

(1) Helping your tribe and punishing or frustrating other tribes.
(2) Stealing from another tribe to favour your tribe.
(3) Having great hatred for people of another tribe.
(4) Conniving to pull down another tribe because of envy.
(5) Speaking evil of persons of another tribe using your language e.g. Insulting a person with your language, but being excited like you are saying congratulations.
(6) Depriving other tribes of designed and agreed privileges given to them, so that you can take the privileges to your tribe.
(7) Hindering the progress of another tribe so that your tribe can overtake or meet up.

Lesson: Keep helping your tribe and make sure they progress. Consider others too when helping and do not deprive others what they deserve.