Don't think having money and a loud voice means you can look down on people.
Tips
usage
Usually pejorative - implies the money buys rude confidence rather than earns respect. Occasionally neutral-descriptive ('well-capitalized and imposing'), but context almost always tilts critical. Common in both business reporting and personal complaints.
memory
Two parallel couplets: 财 big plus 气 coarse. More money (财) means thicker, coarser (粗) attitude (气). The cause-effect is built right into the structure.