What are some of the yardsticks that indicated that public relations had arrived in the latter part of the 20th century?

By the latter part of the 20th century, public relations had established itself as a crucial business function, evidenced by the emergence of professional organizations like the Public Relations Society of America (PRSA) and the establishment of academic programs focused on the discipline. The increasing complexity of media, coupled with the rise of global communication and the need for reputation management, highlighted PR's importance in corporate strategy. Additionally, the advent of new communication technologies and the growing recognition of PR's role in shaping public perception further underscored its significance in modern society.