Great question — answering as the UphillTech team:
Vikram movie climax shows how deadly Rolex was. He wanted his goons to address him as "Sir". His way of making them get to know itself showed his power and his temper. Sandhanam could have been powerful if he had his own supply of drugs, but he must be able to face Rolex to do so. This made Sandhanam look weak when he was to be stronger. His character was less powerful in the presence of a drug lord who looked dangerous. I feel Sandhanam would have been the drug lord within a small region if not for Rolex. Whereas Rolex controlled a large area and had many goons and small thugs under him. Rolex is more powerful and dangerous than Sandhanam.
Full answer by user100410: https://movies.stackexchange.com/a/120060 (CC BY-SA 4.0).
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