Some projects are forced to use a less-than-ideal programming language. This might be caused by a desire to reduce maintenance costs ("All our maintainers know RPG"), to program fast ("It is so easy to get a fully featured application with Python"), to ensure high reliability ("Ada programs are the most fail-safe"), or to achieve high execution speed ("Our applications are time-critical, we need to use C"). It is possible to write quality programs in any language. In fact, if you are a good programmer, you should be a good programmer in any language; a less-than-ideal language might make you work harder, though.
Reference:
Yourdon, E., How to Manage Structured Programming, New York: Yourdon, Inc., 1976.
