Adam Smith, Theory of Moral Sentiments 

Modern capitalism is nothing like the world about which Adam Smith wrote. Modern manufacturing industry was still n the future and his world was chiefly a mercantile one. The predominate form of wealth ownership was that of land. No one grew really rich from making things. This was left to the evolution of industry when a great expansion of the factory system and the intensive exploitation of a very large workforce produced great profits and eventually led to mergers and takeovers to form even more profitable enterprises , thus allowing wealth to be concentrated into fewer hands. Thus the rise of multi-millionaires and billionaires. Smith's model did not allow him to forecast such a devlepment.

Whereby "invisible hand" is not particularly important, it's just mentioned once and then abused in billion different unrelated contexts.

any examples of enforced beneficence leading to government injustices?

The two concepts are irrevocably linked together in the development of modern political systems. The very “rights” espoused by classical liberals would have been seen and indeed were seen as extravagant by the institutional authorities of the 17th century. What we now enjoy as civil rights were only developed in the course of a developing society whose interests were increasingly commercial and literate; thus they were deemed to be an indispensable “good” for citizens. Our modern civil liberties were born from a pursuit of beneficence