The first of these two statements is clearly true of Coolidge's time in office, but the second is somewhat less apparent.
In terms of idealism, Coolidge was mainly idealistic by contrast to his predecessor, Harding. Harding's administration was very corrupt. Coolidge's was not.
Coolidge's terms in office were very clearly a time of pro-business policies. Coolidge did believe that the government should be helping business to prosper. For that reason, Coolidge did things like (through Herbert Hoover) helping businesses find new markets are helping them standardize various products so as to produce them more efficiently. Coolidge's administration did not try to regulate business but instead tried to use governmental powers to help business.