Not a similar job, but quite familiar with government pay scales. The non-salary benefits are customarily quite good. Retirement and health is top shelf as things go, job security if about as good as it gets for an at-will employer (non-contract), clearance is helpful for future employment opportunities.
As to the pride, that is a personal issue.
Another thing you want to note is what the maximum GS grade this job could lead to realistically. If your husband plans to be with the government long-term, this should probably be looked into. Some jobs simply don't offer sequential increasing in salary and job function. Like you could be stuck at a GS-12 for a decade with probably only small cost-of-living increases. Technical positions, like the one you're looking at, are especially notable for this. Not necessarily a bad thing, just limited career advancement (a problem with many jobs and industries).
Relocation benefits are also typically lower for government jobs that for highly recruited private sector ones.
As a rule, most government workers (outside the foreign service) are middle-of-road as far as competence for their job function. Over-achievers, more often than not, tire of things after 4-7 years on the job and seek greener pastures elsewhere. Under-achievers become entrenched at a grade that just about matches their skill levels and retire after 25+ years. It is the ones who are good at what they do, but don't seek to push the envelope too far (in either career advancement, policy change, or anything else really). They put in their time and often retire with full-benefits, then go on to work private sector or doing something they like for another decade.
If I might ask, how old is your husband?