There is no conspiracy to try and hide the internal lock system in images. I doubt that anyone even thinks about it at corporate.

The reason that the right side of the firearm is shown so often is because that is were the cartridge information is located.

From the left side many firearms can be confused with other models. I know that is not necessarily true of the few thousand hard core enthusiasts on this Forum, but it is true of the million or so average folks that purchase Smith and Wessons annually