Ang mga Ilonggo ay hindi mayabang. Your source claims to be a prominent person in Iloilo. Your source is not the typical Ilonggo. Maybe he/she is expecting something in exchange for his/her help, which explains his/her statement. After all, there are always exceptions to the rule.
Having said that, while Ilonggos will not expect any reward, some will gladly accept the reward if it is willingly and voluntarily given.