What are the cultural changes in accounting firms in early 20th century?

In the early 20th century, accounting firms underwent significant cultural changes driven by the growing complexity of business and regulatory environments. The profession began emphasizing professionalism, ethics, and standardized practices, leading to the establishment of formal accounting associations and the adoption of standardized accounting principles. Additionally, the rise of corporate finance and the need for transparency in financial reporting fostered a shift from a primarily clerical role to one that demanded analytical skills and strategic advisory capabilities. This evolution laid the groundwork for modern accounting practices and the professionalization of the field.