At least corporate training starts with an honest agenda - indoctrination of a specific system or process being the purpose.
In the last twelve months one organisation, involved in recruitment and supply of services, promoted a course that implied not attending would lead to being disadvantaged in employment through them. This is illegal.
Other organisations provide technical communication courses but again, quality and purpose are often narrow and not holistic. They are short and constructed to cover specific areas and are designed to meet commercial realities. One classic example is the current stasis of Certificate IV in Workplace Training and Assessment. The competition means cost of courses reduces. What gives? Quality of outcome. Commercial reality for private operators sponsored by government agencies mean funding is related to the number of graduates.