When we promote dignity in a population we are training people not to feel bad about themselves. People who feel good about themselves tend not to want to take for themselves what doesn't belong to them. Owning only what you deserve makes you feel good about yourself. Taking what's not yours, what you don't deserve, might perhaps improve your welfare but it degrades your well-being.
A combination of inner and outer sensibilities is what needs to be optimized for one’s own true betterment and for the true betterment of society. That means it's not just material goods that need to be produced, not only ‘the what,’ but also the meaning of what is being produced, ‘the how,’ which also matters.