Why did Constantinople's location make some citizens fabulusly wealthy?

Constantinople's strategic location at the crossroads of Europe and Asia allowed it to control key trade routes, facilitating commerce between the two continents. Its position along the Bosporus Strait enabled access to both the Mediterranean and Black Seas, making it a vital hub for merchants and traders. This influx of trade and goods attracted wealth, leading to the prosperity of many citizens and the city itself. Additionally, the city's fortified walls provided security, encouraging economic growth and stability.