For security reasons you say? No.

I mean, LD_PRELOAD is very useful. I used libfaketime once to debug a problem in a project that I worked that only happened when you run the test suite in a specific range of time. This power is very useful.

Can it be abused? Maybe, however you should assume that your environment is trusted or there is way worse ways to modify a process that is running in your system. In some of them it doesn't matter if the binary is static or not.