It is a good thing to work and make halal money, by this halal money I mean pure money. It is also a good thing to aim at becoming rich. It is not a sin at all; some individuals have correlated money with evil, they are wrong. Money is good when its gotten through halal sources (meaning pure sources) and it is spent in the way of God. By this, I have not said do not spend your money on yourself please do but always pay Zakat (which is the obligatory charity) and give Sadaqah (which is the non-obligatory charity).
So, do not let anyone stigmatize you when you have a desire to be rich. Halal means anything that is acceptable Islamically. Hope, I have dealt with the inflation. Thanks for reading my article. Keep checking out my blog regularly. Cheers!