Big problems are solved in small steps and your software could make those steps significantly more efficient.
The folks working on TCP/IP back in the 80s could have shared your worries but now it's the backbone for a technology making all forms of business and science more efficient.
Even if you're working on, say, a dating or pornography site, it's hard to work out what value is or isn't being provided somewhere down the line in the calculus that is human achievement. Even a comment you make here on HN could be the inspiration that leads something into a path to greater things.
The folks working on TCP/IP back in the 80s could have shared your worries but now it's the backbone for a technology making all forms of business and science more efficient.
Even if you're working on, say, a dating or pornography site, it's hard to work out what value is or isn't being provided somewhere down the line in the calculus that is human achievement. Even a comment you make here on HN could be the inspiration that leads something into a path to greater things.