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Most businesses need to send files via sFTP for various reasons. I am not sure why Dropbox does not provide SSH as an option to upload and/or download files.
Megan wrote:..., please share how this would help you, ...
It's easy. sftp is supported on almost all platforms usable at present (much more than Dropbox supports - either software of hardware platforms). SSH (the base for sftp) is popular and confirmed secure. To be even more secure Dropbox may add auto-generated username and password to be used - not directly the accounts one - so easy some access to be granted and revoked whenever needed (similar to revoke linked device). In such a way all users would have access from devices that Dropbox doesn't need to support (support of the standard would be enough). Even though in such a way some features (specific to Dropbox) wouldn't be available, it's enough in many use cases (where just possibility for regular access to the data is enough).
In other words - support of just one standard is easier than support for uncountable number of Dropbox applications versions.
I hope this tips the "scale". 🙂