I don't think it's so much that software is better or worse than manual entry. First, it's the attitude / rules that assume what's in the system is right. Second, it's no real procedure to audit or check the accuracy of the data.
From a professional who works with data systems, you're more likely to have a database with bad data in it that not.
From a professional who works with data systems, you're more likely to have a database with bad data in it that not.