I don't know where your amount numbers are coming from and how relevant they are.
Canon has 2 cameras on this list (M50 and M100, with unit price of 629.00 and 449.00, respectively, for total of 1,078.00$).
Sony has 4 cameras on this list (A6400, A6000, A7III and A5100 with unit price of 898.00, 398.00, 1998.00 and 448.00, respectively, for total of 3,742.00$). Price quote from Adorama, as of today.
Canon's top 10 total share is 27% with 2 cameras vs. Sony's 25.3% with 4 cameras.
The data speaks for itself. From this data, one can only conclude that Canon's relatively less expensive cameras are selling better than the other brands.
The data does not indicate anything related to profit margin or total dollar value sold and any conclusion related to them will be purely speculative at best.