My old Sig 229 was the same and that is one reason may LEO carry them as the appearance of a de-cocked pistol is more acceptable than that of a cocked and locked piece. That said, if someone is carrying a pistol for SD there should be (there better be) one in the chamber regardless of the make or model of pistol being carried. Some like the HK, Sig and others have a first shot DA trigger followed by SA, some are DA all the time and some are SA all the time and a pistol with the hammer being cocked or uncocked is dependent upon the style of pistol (most DA pistols are striker fired so there is no hammer).
Many will argue that a SA 1911 type pistol is actually safer because there has to be 3 steps taken for the gun to fire (grip the pistol disengaging the grip safety, disengage the manual safety and pull the trigger) versus just 2 steps for many DA pistols (grip and rip) unless that model of DA, striker fired pistol it has a manual safety.
Either way, all pistols are safe to carry and are intended to be carried with a round int he chamber as long as the one carrying them knows what they are doing and realizes a couple facts. One being the person causing a firearm to discharge is ultimately responsible for the final resting place of the projectile that is launched from said firearm and the other being that one's booger getter better stay off the trigger until it is determined that the pistol WILL be fired.
"Shoot low boys...they're riding shetland ponies in search of true grit" Lewis Grizzard