If you skipped the launch escape system, you'd be able to transport more in the same number of launches(or the same amount in fewer) and your craft would be less complex, allowing you to focus on making the remaining systems less likely to need an escape.
Even if you don't fancy a look at our (honestly somewhat curious) level of risk aversion around space activity, it's not clear that adding an escape pod is a better investment, in terms of lives saved, than spending the resources on more extensive testing, improved reliability, and similar for the main systems. It's very much unlike the car scenario, where even 100% perfect engineering doesn't change the fact that other people are going to screw up and crash into you, and that a fair number of your drivers are going to be incompetent, drunk, or distracted; so you fairly quickly run out of improvements to the drive and steering system and have to achieve further survival gains by building in crash resistance. With a rocket, building a launch system that doesn't destroy itself and/or kill the passengers some of the time is quite challenging; but there isn't the same presence of ineradicable external danger, if your system doesn't kill the passengers, they'll survive.(Until you get them into orbit, where the micrometeorites can take them out...)