Not all bodies were made the same. We are all born differently and different lifestyles will help shape our bodies too. Some people will have a harder time finding clothes in retail stores that fit them because manufacturers can't cater to every single body type in this world. So they mass produce clothes in sizes that fit majority of the population.
Here's where we can help. Have a look at Jason's suit. He avidly lifts weights and has sculpted his upper body so that it is broad and thick. I cannot imagine a single suit retailer that would carry anything for men who have muscular upper bodies and narrow waists.
Balsam Tailors can make a suit that fits your specific body shape: