Sales/Marketing Industry Future

B2b sales is internationally a multi trillion dollar industry. Software sales is paying stacks for people with regular sales skills (as opposed to specialized phd type skills) because there’s so much money here. Are the next gen abm/crm tools the next wave? Salesforce is already huge. Thoughts on 6sense, hubspot, demandbase, zendesk? Is the solution an all in one or individual software that’s good at a specific subset of tasks? What’s the best abm tool out there? Any risk of big tech taking over this and integrating it into their cloud like aws crm stuff or smthn?