Why are true and false so large?

After finding out that several common commands (such as read) are actually Bash builtins (and when running them at the prompt I'm actually running a two-line shell script which just forwards to the builtin), I was looking to see if the same is true for true and false. Well, they are definitely binaries. sh-4.2$ which true /usr/bin/true sh-4.2$ which false /usr/bin/false sh-4.2$ file /usr/bin/true /usr/bin/true: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=2697339d3c19235 06e10af65aa3120b12295277e, stripped sh-4.2$ file /usr/bin/false /usr/bin/false: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=b160fa513fcc13 537d7293f05e40444fe5843640, stripped sh-4.2$ However, what I found most surprising was their size. I expected them to be only a few bytes each, as true is basically just exit 0 and false is exit 1. sh-4.2$ true sh-4.2$ echo $? 0 sh-4.2$ false sh-4.2$ echo $? 1 sh-4.2$ However I found to my surprise that both files are over 28KB in size. sh-4.2$ stat /usr/bin/true File: '/usr/bin/true' Size: 28920 Blocks: 64 IO Block: 4096 regular file Device: fd2ch/64812d Inode: 530320 Links: 1 Access: (0755/-rwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2018-01-25 19:46:32.703463708 +0000 Modify: 2016-06-30 09:44:27.000000000 +0100 Change: 2017-12-22 09:43:17.447563336 +0000 Birth: - sh-4.2$ stat /usr/bin/false File: '/usr/bin/false' Size: 28920 Blocks: 64 IO Block: 4096 regular file Device: fd2ch/64812d Inode: 530697 Links: 1 Access: (0755/-rwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2018-01-25 20:06:27.210764704 +0000 Modify: 2016-06-30 09:44:27.000000000 +0100 Change: 2017-12-22 09:43:18.148561245 +0000 Birth: - sh-4.2$ So my question is: Why are they so big? What's in the executable other than the return code? PS: I am using RHEL 7.4